National Oilwell Varco (NOV) Replacement Spare Parts

Product Introduction

This premium NOV spare parts lineup includes direct-fit OEM replacement components for routine preventive maintenance, emergency breakdown repairs, and full system overhauls across all key NOV drilling equipment. The collection covers iron roughneck gears and cylinders, top drive bearings and seal kits, triplex mud pump liners and valve assemblies, BOP sealing rings and packers, gate valve bushings and stems, rotary table shims, and hydraulic control valves—all designed to eliminate compatibility issues and streamline field installation. Unlike generic aftermarket parts, each component is manufactured to the exact design specifications of NOV equipment, ensuring reliable performance under high-pressure, high-load drilling conditions and adherence to global oilfield safety and quality standards.

Functional Specifications

• Iron Roughneck Components: Spinner gears, idler gears, and crown/bevel gears deliver precise torque for pipe makeup/breakout; torque/clamp cylinders provide consistent clamping force; hydraulic cartridges and control valves regulate smooth roughneck operation.
• Mud Pump & Valve Components: 6-1/4” liners, valve discs, and piston seals maintain high-pressure mud circulation; gaskets and packing assemblies prevent fluid leakage; suction/discharge modules regulate mud flow for efficient drilling.
• BOP & Well Control Components: Wear rings, poly-pak seals, and O-rings ensure pressure-tight sealing for 18-3/4” double ram BOPs; gate valve bushings and stems enable reliable shutoff for 5,000 PSI valves.
• Top Drive & Rotary Components: Bearings, shaft sleeves, and seal kits support smooth top drive rotation; shims and coupling spacers maintain proper rotary table alignment; temperature sensors and pressure switches monitor critical operating parameters.

Structural Characteristics

All NOV spare parts feature rugged, oilfield-specific construction for maximum durability: gear and bearing components use high-carbon chrome alloy steel for exceptional wear and load resistance; sealing components use oil/chemical-resistant NBR and FKM elastomers to prevent degradation; mud pump parts use abrasion-resistant forged steel to withstand slurry wear; external components use corrosion-resistant coatings to endure harsh drilling environments. Parts are precision machined to OEM dimensions for tool-friendly field installation, minimizing repair time during critical drilling operations.

Applicable Operating Conditions

These spare parts are engineered to perform reliably in demanding oilfield environments, perfectly suited for:

• NOV iron roughnecks, top drive systems, and triplex mud pumps
• 5,000 PSI Type B/DB gate valves (3-1/8”) and 18-3/4” double ram BOPs
• High-pressure mud circulation (up to 5,000 PSI) and well control operations
• Onshore/offshore drilling rigs, workover units, and hydraulic power systems
• Temperature extremes (-20°F to 280°F) and exposure to drilling mud, H₂S, and hydraulic fluids
• Compliance with API 7K, API 6A, API 16A, and ISO 13535 drilling standards

Maintenance & Servicing Recommendations

1. Pre-Installation Verification: Cross-reference OEM part numbers against NOV equipment technical manuals to confirm exact fitment; inspect parts for defects, warping, or seal damage; clean mating surfaces to remove mud, debris, and old seal residue before assembly.
2. Gear & Bearing Care: Lubricate iron roughneck gears and top drive bearings every 500 drilling hours; inspect for wear, pitting, or play every 1,500 hours and replace worn components to prevent catastrophic failure.
3. Seal & O-Ring Replacement Schedule: Replace mud pump packing, BOP seals, and valve O-rings every 2,000 operating hours; lubricate seals with compatible fluid during installation to prevent tearing; check for leaks post-installation and retorque fasteners as needed.
4. Mud Pump & Valve Maintenance: Inspect mud pump liners and valve seats for wear monthly; replace worn valve discs and springs to maintain pressure; clean suction strainers regularly to prevent blockages.
5. Instrumentation & Hydraulic Checks: Calibrate pressure sensors and temperature switches quarterly; test hydraulic control valves for proper actuation; inspect hydraulic hoses for cracks or leaks and replace immediately.

We supply the following spare parts:

National Oilwell Varco
Item	Item Name		Article	Mechanism / Device	ME
1	IDLER SHAFT		30160604	ROUGHNECK	pcs
2	SCREW, SET-SOCKET HEAD		50708-12-OC	ROUGHNECK	pcs
3	SCREW		55109-08-C	ROUGHNECK	pcs
4	KEY, 12x8x35mm		30160607	ROUGHNECK	pcs
5	KEY, 12x8x50mm		30160608	ROUGHNECK	pcs
6	KEY, 16x10x70mm		30160617	ROUGHNECK	pcs
7	ASSY. LH SPIN WRENCH		30160387	ROUGHNECK	pcs
8	ASSY, RH SPIN WRENCH		30160390	ROUGHNECK	pcs
9	SPINNER GEAR		30160619	ROUGHNECK	pcs
10	IDLER GEAR		30160620	ROUGHNECK	pcs
11	TRANSITION GEAR		30160621	ROUGHNECK	pcs
12	CROWN WHEEL		30160622	ROUGHNECK	pcs
13	BEVEL GEAR		30160623	ROUGHNECK	pcs
14	LOCKING RING, UPPER		30160603	ROUGHNECK	pcs
15	Packing, Shaft		8264-24-ОВ	Pumps	pcs
16	PIN , SW HINGE		30160612	ROUGHNECK	pcs
17	Schalter, Temperatur, atex Eex		30151888-D	Top Drive System	pcs
18	MOTOR, HYDRAULIC, MODIFIED		30172180	ROUGHNECK	pcs
19	Gasket, Casing		10399-46-1	Pumps	pcs
20	SPACER, COUPLING		1312304	Rotary Table	pcs
21	Gland Assy., Packing		Н20622-4А	Pumps	pcs
22	Seal, Shaft Sleeve		23444-01-72	Pumps	pcs
23	Seal, Impeller		Н19110-72	Pumps	pcs
24	CLAMP CYLINDER ASSY		30160444	ROUGHNECK	pcs
25	ASSY, LH TORQUE CYL		30160684	ROUGHNECK	pcs
26	ASSY, RH TORQUE CYL		30160685	ROUGHNECK	pcs
27	SHAFT, SW ROLLER		30173756	ROUGHNECK	pcs
28	15 GALLON NITRILE BLADDER WITH SEAL KIT		20369546	BOP CONTROL SYSTEM	pcs
29	BEARING, GEAR SLIDE		30160605	ROUGHNECK	pcs
30	Gate Bushing		717383	5,000 psi Type B Gate Valve 3-1/8″	pcs
31	BUSHING, GATE, 35M TCB, & 25/10M & 35M TDB VL		717392	5,000 psi Type DB Gate Valve 3-1/8″	pcs
32	Bushing, Fiberglide, Sleeve		118844-22-12	Top Drive System	pcs
33	Sleeve, Shaft (M.S. Pump)		Н20613-21А	Pumps	pcs
34	Sleeve, Shaft (M.S. Pump)		Н20613-21А	Pumps	pcs
35	Sleeve, Shaft (M.S. Pump)		Н20613-21А	Pumps	pcs
36	Sleeve, Shaft (M.S. Pump)		Н20613-21А	Pumps	pcs
37	Liner, 6 1/4″		05-466-625	Triplex Mud Pump	pcs
38	Nut, Piston		005-402-052	Triplex Mud Pump	pcs
39	NUT, PSTN, TD HYD OPER		718917	5,000 psi Type B Gate Valve 3-1/8″	pcs
40	MODULE STUDDED, SUCTION		1292362	Triplex Mud Pump	pcs
41	MODULE STUDDED, DISCHARG		1292361	Triplex Mud Pump	pcs
42	CAP, FOR PISTON		32500-02/М2	Reset Relief Valve	pcs
43	PRESSURE SENSOR  0-5000 PSI, 4-20 мA, 24 В		4520253	HYDRAULIC POWER UNIT POWERED MOUSEHOLE CONTROL CABINET	pcs
44	Diaphragm, Suction Line Dampener		1290195	Triplex Mud Pump	pcs
45	Disc, Valve		1560557	Triplex Mud Pump	pcs
46	VLV, NEEDLE, 2WAY, 9/16″THP,  30000# VEE STEM		1120304	High Pressure Test Unit	pcs
47	VLV, NEEDLE, 2WAY ANGLE, 30M  VEE STEM 9/16″ THP		1120310	High Pressure Test Unit	pcs
48	Ball valve  3″ANSI 150#		20022756	HYDRAULIC POWER UNIT POWERED MOUSEHOLE CONTROL CABINET	pcs
49	2″ TRIPLEX PUMP SUCTION LINE VALVE		20368291	BOP CONTROL SYSTEM	pcs
50	P – 0 CV CARTRIDGE		107029-375N	ROUGHNECK	pcs
51	REMOTE VALVE CONTROL		30171622-500	ROUGHNECK	pcs
52	VALVE, CHECK, PILOT TO OPEN, 75PSI		93547-2B75N	ROUGHNECK	pcs
53	CB VALVE, CARTRIDGE		94518-23HN	ROUGHNECK	pcs
54	CHECK VALVE, CARTRIDGE		94536-175N	ROUGHNECK	pcs
55	CONTROL VALVE		10400	Catwalk Machine	pcs
56	PILOT CONTROL VALVE W/ 2 LEVER		16016	Catwalk Machine	pcs
57	VLV, CHECK, HP, 60K, POPPET TYPE, 9/16″THP X 9/16″		1503602	High Pressure Test Unit	pcs
58	WEAR RING, OPERATING PISTON (Large Bore)		20374247	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
59	WEAR RING, OPERATING PISTON (Standart Bore)		20356175	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
60	ORING, 7075 DURO		30583	5,000 psi Type DB Gate Valve 3-1/8″	pcs
61	Spring O-Ring		30599	5,000 psi Type B Gate Valve 2-1/16″	pcs
62	ORING, 7075 DURO		30611	5,000 psi Type DB Gate Valve 3-1/8″	pcs
63	O-Ring		30614	5,000 psi Type B Gate Valve 3-1/8″	pcs
64	ORING, 7075 DURO		30632	5,000 psi Type DB Gate Valve 3-1/8″	pcs
65	RG, RETAINING		40985	5,000 psi Type B Gate Valve 3-1/8″	pcs
66	RING, RETAINER		40999	5,000 psi Type B Gate Valve 3-1/8″	pcs
67	PUSH RING		30160397	ROUGHNECK	pcs
68	O-RING		51300-112-B	ROUGHNECK	pcs
69	RG, PKG, 35M&210M, TDB VLV		717292	5,000 psi Type DB Gate Valve 3-1/8″	pcs
70	RG, PKG, BTM		717315	5,000 psi Type DB Gate Valve 3-1/8″	pcs
71	RG, PKG, TOP		717316	5,000 psi Type DB Gate Valve 3-1/8″	pcs
72	SPACER, 5/10M, TDB VLV		717317	5,000 psi Type B Gate Valve 3-1/8″	pcs
73	RG, PKG, 35M, TDB VLV		717390	5,000 psi Type DB Gate Valve 3-1/8″	pcs
74	RG, HDR, PKG FOR 11/4″DIA BALANCE STEM, H2RG, HDR		718226	5,000 psi Type B Gate Valve 3-1/8″	pcs
75	Plastic Energizing Ring		20356412	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
76	O-Ring		20014727	HYDRAULIC POWER UNIT POWERED MOUSEHOLE CONTROL CABINET	pcs
77	Seal Kit		94764-SK	Top Drive System	pcs
78	RING, THREADED		1292351	Triplex Mud Pump	pcs
79	HSG, BRG, #1, TB VLV		717082	5,000 psi Type DB Gate Valve 3-1/8″	pcs
80	HSG, BRG, #1, TB VLV		717082	5,000 psi Type DB Gate Valve 3-1/8″	pcs
81	COVER,VALVE		1292352	Triplex Mud Pump	pcs
82	BONNET, SUB-ASSY,TITAN “C”		34020	RESET RELIEF VALVE, TITAN CLASS TYPE “C”	pcs
83	Packing Gland		717083	5,000 psi Type B Gate Valve 2-1/16″	pcs
84	GLAND, PKG, 25/10M & 35M, TDB VLV, TAILROD		717290	5,000 psi Type B Gate Valve 3-1/8″	pcs
85	FLG, RETNR, PKG, TAILROD, PSL3		718794	5,000 psi Type B Gate Valve 3-1/8″	pcs
86	CAP, OVERRIDE, TD HYD OPER, 110M, 23/5/10M, 35		718920	5,000 psi Type B Gate Valve 3-1/8″	pcs
87	WEARBAND, 1/2″WIDE		152344	Drilling Choke Valve	pcs
88	SEAL ASSY		30160666-4	ROUGHNECK	pcs
89	Packing Seal		20356413	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
90	MANIFOLD		109270-GA1	ROUGHNECK	pcs
91	ASSY, MANIFOLD – ST80		30154910-1	ROUGHNECK	pcs
92	ASSY, MANIFOLD, LOAD HOLD		30170647-2	ROUGHNECK	pcs
93	ST-80 MANIFOLD ASSY		30172354-502	ROUGHNECK	pcs
94	Packing Assembly		717078	5,000 psi Type DB Gate Valve 3-1/8″	pcs
95	Packing Assembly		717078	5,000 psi Type DB Gate Valve 3-1/8″	pcs
96	SEALS KIT		34095	Catwalk Machine	pcs
97	SEALS KIT		24305	Catwalk Machine	pcs
98	SEALS KIT		19483	Catwalk Machine	pcs
99	SEALS KIT		46262	Catwalk Machine	pcs
100	Stem Adapter		717079	5,000 psi Type B Gate Valve 2-1/16″	pcs
101	BEARING, MODULAR		62238	5,000 psi Type DB Gate Valve 3-1/8″	pcs
102	BEARING. BALL		30160733	ROUGHNECK	pcs
103	BEARING. BALL		30160734	ROUGHNECK	pcs
104	BRG, MOD, 25/10M, TB/DB VLV, & 35M TB/DB/CB VL		62228	5,000 psi Type DB Gate Valve 3-1/8″	pcs
105	BRG, MOD, 25/10M, TB/DB VLV, & 35M TB/DB/CB VL		62228	5,000 psi Type DB Gate Valve 3-1/8″	pcs
106	PSTN, TD HYD OPER, 110M, 23/5/10M, 35M		718916	5,000 psi Type DB Gate Valve 3-1/8″	pcs
107	Grease Fitting		60876	5,000 psi Type B Gate Valve 2-1/16″	pcs
108	Grease Fitting		60882	5,000 psi Type B Gate Valve 2-1/16″	pcs
109	LOCKWIRE		Z6001	Top Drive System	pcs
110	Gasket, Suction Line Dampener		1290199	Triplex Mud Pump	pcs
111	Bonnet Gasket		50382	5,000 psi Type B Gate Valve 2-1/16″	pcs
112	Gasket, Cover		1275158	Triplex Mud Pump	pcs
113	Gasket, Wrench Cover		1292064	Triplex Mud Pump	pcs
114	Gasket, Main Frame Cover		1292095	Triplex Mud Pump	pcs
115	Gasket, Pinion Bearing		1292097	Triplex Mud Pump	pcs
116	Gasket, Top Crosshead Access		1292076	Triplex Mud Pump	pcs
117	Gasket, Liner 6 1/4″		1540150	Triplex Mud Pump	pcs
118	Gasket, Main Bearing Cap		1292096	Triplex Mud Pump	pcs
119	Gasket, Clean Out		1283191	Triplex Mud Pump	pcs
120	Gasket, Retainer Plate		1292079	Triplex Mud Pump	pcs
121	SHIM (.002” THICK), BALL BEARING LOWER RACE		627610	Rotary Table	pcs
122	SHIM (.003” THICK), BALL BEARING LOWER RACE		627610-1	Rotary Table	pcs
123	SHIM (.036” THICK), BALL BEARING		648078-1	Rotary Table	pcs
124	SHIM (.048” THICK), BALL BEARING		648078	Rotary Table	pcs
125	PROTECTOR, FLG, 31/8″5M (PLASTIC)		64055	5,000 psi Type B Gate Valve 3-1/8″	pcs
126	SPRING, VALVE		1560701	Triplex Mud Pump	pcs
127	PRESSURE SWITCH		20008755	HYDRAULIC POWER UNIT POWERED MOUSEHOLE CONTROL CABINET	pcs
128	POLY-CHAIN TRIPLEX PUMP		20368651	BOP CONTROL SYSTEM	pcs
129	REPAIR KIT- SOFT SEALS		30177468-1	Top Drive System	pcs
130	REPAIR KIT- COMPLETE		30177468-2	Top Drive System	pcs
131	Kit Assembly		719367	5,000 psi Type B Gate Valve 2-1/16″	pcs
132	Repair Kit, Alignment Cylinder		30174223-RK	Top Drive System	pcs
133	SLIDE RING		30173757	ROUGHNECK	pcs
134	SEAT ASSY, 35M, TB/DB/HB VLV ELASTO II, H2S, STD		719448	5,000 psi Type DB Gate Valve 3-1/8″	pcs
135	SEAT ASSY, 35M, TB/DB/HB VLV ELASTO II, H2S, STD		719448	5,000 psi Type DB Gate Valve 3-1/8″	pcs
136	Seat Assembly		719366	5,000 psi Type B Gate Valve 2-1/16″	pcs
137	SEAT, VALVE		1561450	Triplex Mud Pump	pcs
138	Diaphragm Stabilizer		1005213	Triplex Mud Pump	pcs
139	4″ I.D. WASHPIPE SHOWN		30123438	Top Drive System	pcs
140	PUMP ASSEMBLY WITH DRIVE		20027047	HYDRAULIC POWER UNIT POWERED MOUSEHOLE CONTROL CABINET	pcs
141	WASHPIPE ASSY, 4 ” BORE		30123440	Top Drive System	pcs
142	O-RING, RAM CHANGE PISTON		20355884	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
143	Packer Variable Bore Ram 3-1/2″ – 7-5/8″		20359481	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
144	Top Seal 4-1/2″		20377155	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
145	O-RING, WIPING		20351512	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
146	O-RING, BONNET BOLT RETAINER		20355642	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
147	O-RING, RAM CHANGE PISTON ROD TO INT FLANGE		20355882	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
148	O-RING, OP. CYL. (STD)		20355887	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
149	O-RING, OP. PISTON ROD TO INT FLANGE		20356171	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
150	O-RING, RAM CHANGE CYL. TO INT FLANGE		20356172	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
151	O-RING, RAM CHANGE PISTON TO BODY		20367700	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
152	POLY PAK SEAL, OPERATING PISTON (Large Bore)		20374248	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
153	Side Packer Left		20374340	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
154	Side Packer Right		20374341	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
155	LIP SEAL, OPERATING PISTON (Standart Bore)		20376375	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
156	Top Seal Variable Bore Ram 2-7/8″ – 5″		20394383	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
157	Grease Seal		60603	5,000 psi Type B Gate Valve 2-1/16″	pcs
158	SEAL, POLYPAK		62232	5,000 psi Type DB Gate Valve 3-1/8″	pcs
159	SEAL, POLYPAK		62218	5,000 psi Type DB Gate Valve 3-1/8″	pcs
160	SEAL, POLYPAK		62220	5,000 psi Type DB Gate Valve 3-1/8″	pcs
161	SEAL, VALVE RETAINER		1540126	Triplex Mud Pump	pcs
162	O-RING, RAM CHANGE CYLINDER TO BONNET		20355883	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
163	SEAL, BONNET		20364461	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
164	Seal, Lip, Bull Gear		88096	Top Drive System	pcs
165	Seal, Mechanical		Н22451-1А	Pumps	pcs
166	Seal, Mechanical		Н22451-1А	Pumps	pcs
167	Seal, Mechanical		Н22451-1А	Pumps	pcs
168	Seal, Mechanical		Н22451-1А	Pumps	pcs
169	PACKING, PLASTIC		20351679	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
170	Seal, Piston 6 1/4″		15180284	Triplex Mud Pump	pcs
171	SEAL RING, CONNECTING ROD		20356169	Double Ram Blowout Preventer 18-3/4” 5,000 PSI	pcs
172	HIGH PRESSURE FILTER		142294	Catwalk Machine	pcs
173	FILTER. PRESSURE		82747-R	ROUGHNECK	pcs
174	Strainer, Discharge		1292219	Triplex Mud Pump	pcs
175	FILTER  WINCH  FA5A (1 1/2 ” FNPT)		F35-0B-C28	AIR WINCH	pcs
176	RING, FLANG E		702640-23-71-HSO	Reset Relief Valve	pcs
177	Clamp, Rod		1292085	Triplex Mud Pump	pcs
178	CYL, TD HYD OPER, 110M, 23/5/10M, 35M		718915	5,000 psi Type DB Gate Valve 3-1/8″	pcs
179	GATE, FM, 35M, TDB VLV, STD, H2S, LT, API 6A, PS		717904	5,000 psi Type DB Gate Valve 3-1/8″	pcs
180	Hydraulic hose		203276-1	Hydraulic elevator	pcs
181	Hydraulic hose		203276-2	Hydraulic elevator	pcs
182	SHOT PIN		30173958	Top Drive System	pcs
183	KEY, WOODRUFF		62260	5,000 psi Type B Gate Valve 3-1/8″	pcs
184	Dowel Pin		50071	5,000 psi Type B Gate Valve 2-1/16″	pcs
185	STEM, 35M, TDB, H2S/LT, API 6A, PSL3,		20015413	5,000 psi Type DB Gate Valve 3-1/8″	pcs
186	TAILROD,  35M, TDB VLV , H2S/LT, API 6A, PSL3		20015416	5,000 psi Type B Gate Valve 3-1/8″	pcs
187	STEM, INSIDE, TD HYD OPER, 110M, 23/5/10M, 35M		718918	5,000 psi Type B Gate Valve 3-1/8″	pcs
188	STEM, OUTSIDE, TD HYD OPER, 110M, 23/5/10M, 35		718919	5,000 psi Type B Gate Valve 3-1/8″	pcs
189	BUSHING, BONNET		13229-08	RESET RELIEF VALVE, TITAN CLASS TYPE “C”	pcs
190	BUSHING, F/ PISTON		13229-10	RESET RELIEF VALVE, TITAN CLASS TYPE “C”	pcs
191	RESET RELIEF VALVE		34000-02	Triplex Mud Pump	pcs

Field Fault Repair Cases for NOV Equipment

Case 1: NOV Iron Roughneck Pipe Handling Failure

An NOV iron roughneck failed to grip and spin drill pipe, caused by worn spinner gears (30160619) and damaged slide rings. The issue halted pipe makeup operations and delayed drilling. Replacing the gears and slide rings restored precise torque delivery and full roughneck functionality.

Case 2: Triplex Mud Pump Pressure Loss

An NOV triplex mud pump experienced severe pressure loss and mud leakage, traced to worn 6-1/4” liners (05-466-625) and degraded piston seals (15180284). The issue reduced mud circulation efficiency and risked well control problems. Installing new liners and seals restored full pumping pressure and eliminated leakage.

Case 3: BOP Seal Failure & Pressure Leakage

A 5,000 PSI NOV double ram BOP developed pressure leakage at the operating piston, caused by worn poly-pak seals (20374248) and O-rings. The leakage compromised well control safety and required immediate repair. Fitting new OEM BOP seals restored pressure-tight integrity and compliance with well control standards.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts compatible with all NOV iron roughneck and mud pump models?	These parts are designed for standard NOV iron roughnecks, triplex mud pumps, and 5,000 PSI BOP/gate valves; verify OEM part numbers (3016/717/1292/2035 series) against your equipment specs for exact fitment.
What is the service life of NOV mud pump liners and BOP seals?	Under normal drilling conditions, mud pump liners last 2,500-3,000 hours, and BOP seals last 2,000 hours; replace immediately if wear, leakage, or pressure loss occurs.
Do these NOV spare parts meet API well control standards?	Yes, all BOP, gate valve, and mud pump components comply with API 6A, API 16A, and API 7K standards, ensuring safe and reliable performance in drilling and well control operations.

Procurement Guidance & Closing Statement

For drilling rig maintenance teams, procurement managers, and well control specialists responsible for keeping NOV iron roughnecks, top drives, mud pumps, and BOP systems operational in high-demand oilfield environments, this spare parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical components. Backed by strict industry manufacturing standards and exact NOV OEM part number matching, these components eliminate compatibility risks, streamline on-rig repair workflows, and provide a clear technical benchmark to resolve equipment faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency pipe handling or pressure leak repairs, or planned full equipment overhauls, these model-specific spare parts ensure adherence to API and global drilling safety standards, minimize costly unplanned rig downtime, and preserve the long-term service life of your NOV equipment fleet. Secure the precision gears, seals, bearings, valves, and cylinders your NOV machinery needs to maintain reliable, efficient, and uninterrupted drilling and well control operations.