NOV Floor Equipment Spare Parts

Detailed Product Introduction

This NOV floor equipment parts collection covers all mission-critical wear and replacement components for each targeted equipment model, with cross-referenced NOV OEM part numbers for exact drop-in fit. The catalog includes power slip hardware (hex cap screws, flat washers, relief valves), crown block components (sheaves, shafts, bronze bushings), DLA line guards and lock nuts, iron roughneck seals, bearings, and hydraulic cartridges, cathead retainers and shafts, drawworks bearings, seals, accumulators, and valves, plus top drive lube pumps, accumulators, and bushings. Parts are curated to address the highest-failure zones of NOV floor equipment, eliminating compatibility gaps and reducing field repair and installation time for both minor component swaps and full system refurbishments.

Functional Performance & Value Highlights

• Heavy-Duty Load Capacity: API 8C-certified crown block sheaves and drawworks bearings handle maximum hoisting loads, preventing structural failure and extending equipment lifespan by 75%.
• Reliable Hydraulic/Pneumatic Integrity: Premium O-rings, check valves, and seal kits eliminate fluid/air leaks, maintaining consistent pressure for iron roughnecks, drawworks clutches, and top drives.
• Precision Clamping & Hoisting Control: Power slip hardware and cathead components ensure secure pipe handling and accurate line pull control, reducing pipe damage risks.
• Wear Resistance: Bronze bushings, spherical roller bearings, and wear plates withstand continuous friction and heavy impact, minimizing replacement frequency and maintenance labor.

Structural & Engineering Features

• OEM Drop-In Fit: All components match NOV original equipment mounting and connection specs, requiring no custom modifications for field installation.
• Industry Standard Compliance: Load-bearing parts meet API 8C/7K standards, fasteners comply with ASME B18 specifications, ensuring global regulatory adherence.
• Corrosion & Abrasion Resistance: High-grade alloy steel, bronze, and industrial sealing materials resist wellsite corrosion, mud contamination, and extreme wear.
• Modular Design: Pre-matched component kits simplify part identification and inventory management for mixed-model NOV floor equipment fleets.

Applicable Operating Conditions

These NOV floor equipment spare parts are engineered for demanding drilling environments, suitable for:

• Routine maintenance, emergency breakdown repairs, and full overhauls of PS-21, L-75, ST-80, D1500UEDB, and TDS 11 NOV floor equipment
• Onshore and offshore drilling rigs with NOV hoisting and pipe handling systems
• High-load pipe handling, hoisting, and top drive drilling operations
• API-compliant rigs requiring certified NOV OEM-compatible replacement parts

Professional Maintenance & Troubleshooting Recommendations

1. Power Slip & Cathead Care: Inspect cap screws, washers, and hydraulic valves every 300 drilling hours; replace worn components to maintain secure pipe clamping.
2. Crown Block Inspection: Check sheaves, shafts, and bronze bushings quarterly for wear; lubricate bearings every 500 hours to prevent friction damage.
3. Iron Roughneck Maintenance: Replace O-rings and roller bearings every 4,000 operating hours; test check valves for proper pressure control.
4. Drawworks Servicing: Inspect spherical roller bearings, seal kits, and accumulators every 6 months; replace worn wear plates and mufflers to preserve clutch performance.
5. Top Drive Upkeep: Service lube pumps and hydraulic accumulators every 3,000 hours; check bushings and exhaust covers for damage to prevent overheating.
6. We supply the following spare parts:

Equipment	Model	Item	Description
Power Slips	PS-21	50008-20-C8D	SCREW, CAP-HEX HD DRILLED
Power Slips	PS-21	50808-N-C	WASHER, FLAT
Power Slips	PS-21	94520-1CN	PRESSURE RELIEF VALVE CARTRIDGE
Crown Block	0	5094D065C	SHEAVE, 50″ DIA. X 10″ SHAFT X 1 3/8″ W.L., API 8C
Crown Block	0	5171D275A	60″ CLUSTER SHEAVE SHAFT
Crown Block	0	5171D275C	SPACER, CLUSTER SHEAVE
Crown Block	0	5094D011B	BUSHING, BRONZE
Crown Block	0	5094D008A	BRACKET, SHEAVE
Crown Block	0	5094D008B	BRACKET, SHEAVE
Crown Block	0	42501058	PIN, SHEAVE
Crown Block	0	5171D123B	BLOCK, BUMPER
DLA	L-75	2191D026C	LINE GUARD
DLA	L-75	7018B386	LOCK NUT ***SEE TEXT***
DLA	L-75	10894887-125	BRONZE INSERT, 1 3/8″ WL
Iron Roughneck	ST-80	18271638-001	Accumulator AccessoryTransfer Barrier, Piston Type
Iron Roughneck	ST-80	51300-112-B	O-RING
Iron Roughneck	ST-80	30160731	BEARING, ROLLER
Iron Roughneck	ST-80	51300-112-B	O-RING
Iron Roughneck	ST-80	30160731	BEARING, ROLLER
Iron Roughneck	ST-80	94536-175N	CARTRIDGE,CHECK,75PSI,PHM3I
Iron Roughneck	ST-80	30160389	ASSY,TRANSMISSION,LH
Iron Roughneck	ST-80	30160392	ASSY, TRANSMISSION ,RH
Iron Roughneck	ST-80	GREASE-CAP	GREASE FITTING CAP *OBS SEE TEXT*
catheads	9015A030	5C01I27A	RETAINER, CABLE
catheads	9015A030	5C01I76A	SHAFT, SHEAVE
catheads	9015A030	5C01I79A	NUT, PISTON ROD
catheads	9015A030	5C01I82A	NUT,RETAINING
catheads	9015A030	A9542026A	WASHER,ANCHOR POST
catheads	9015A030	9015D079A	PLATE,HYDRAULIC CATHEAD MAX LINE PULL (S/N OF RIG
catheads	9015A030	11051182-001	CLAMP, HOSE
catheads	9015A030	10292972-001	Screw, CapHex HeadASME B18.2.10.625-11 UNC-2AL 1 i
catheads	9015A030	11418266-001	SCREW, SETSOCKET0.375-16 UNC-3AL 1 INMATL ALLOY ST
catheads	9015A030	A9542026B	WRENCH, ANCHOR POST WASHER HOOK
drawworks	D1500UEDB	9006D323	SPACER
drawworks	D1500UEDB	9006D322	SPACER
drawworks	D1500UEDB	7006B306	BEARING,ROLLER SPHERICAL
drawworks	D1500UEDB	P231000192	AXIAL CLAMP SEAL KIT
drawworks	D1500UEDB	946650	B1363A TD PLATE SEPARATOR
drawworks	D1500UEDB	947258	A6606 TD DIAPHRAGM 30″
drawworks	D1500UEDB	9006D65	SPACER, DWKS D1500UE
drawworks	D1500UEDB	9006D78	SPACER
drawworks	D1500UEDB	9006D271	SPACER
drawworks	D1500UEDB	9006D272	SPACER
drawworks	D1500UEDB	7040B118	MUFFLER, CLUTCH
drawworks	D1500UEDB	7006B262	BEARING, SPHERICAL ROLLER (SAME AS 7006B159)
drawworks	D1500UEDB	947253	A6599 TD INSULATOR PLATE
drawworks	D1500UEDB	946650	B1363A TD PLATE SEPARATOR
drawworks	D1500UEDB	A2888H	WASHER
drawworks	D1500UEDB	7008B078	PIN, PIVOT
drawworks	D1500UEDB	9006D52	SPACER
drawworks	D1500UEDB	7006B169	BEARING, SPHERICAL ROLLER
drawworks	D1500UEDB	7040B010	CYLINDER, PNEUMATIC , 4 X 12
drawworks	D1500UEDB	7040B071	BOTTLE, 10 GAL ACCUMULATOR
drawworks	D1500UEDB	7040B259	VALVE, CHECK (SAME AS 7040B103)
drawworks	D1500UEDB	7026B065	VALVE, PRESSURE RELIEF
drawworks	D1500UEDB	7918845	SEAL, PACKING PISTON USE P/N 947994-562
drawworks	D1500UEDB	947272	A6613 TD PRESSURE PLATE
drawworks	D1500UEDB	9006D892	WEAR PLATE, 1/4 SECTION *SEE TEXT*
drawworks	D1500UEDB	2410021012	PACKING, O RING POWER SWIVEL
drawworks	D1500UEDB	0001-0823-47	ASSY KEMS C1D1 MAINBRAKE VALVE
drawworks	D1500UEDB	8700A545	CAPSCREW
drawworks	D1500UEDB	8700A545	CAPSCREW
top drive	TDS 11	117603-1	(MT)PUMP,LUBE,GEARBOX,ASSY,TDS9S
top drive	TDS 11	30156835-R75-2	PKG,S-PIPE,RH,OUTSIDE,7500,TDS-9/11SA
top drive	TDS 11	110562-1	TDS9S ACCUM,HYDRO-PNEU 6″
top drive	TDS 11	18306596-003	COVER;LOUVER, EXHAUST;TOP DRIVES;TDS-11S
top drive	TDS 11	18306596-004	COVER;LOUVER, EXHAUST;TOP DRIVES;TDS-11S
top drive	TDS 11	114375-1	MOTOR,HYDRAULIC,MACH,TDS9
top drive	TDS 11	30112626	BUSHING,SLEEVE,1.5X1.94,BRS
top drive	TDS 11	111707-2	VALVE,BODY,MACHINING
top drive	TDS 11	50008-8-C5D	SCREW, CAP-HEX HD DRILLED

Field NOV Floor Equipment Fault Repair Cases

Case 1: PS-21 Power Slip Pressure Relief Valve Failure

A PS-21 Power Slip lost clamping pressure due to a faulty pressure relief valve cartridge (P/N 94520-1CN). Installing the OEM NOV valve restored consistent hydraulic pressure and secure pipe handling.

Case 2: ST-80 Iron Roughneck Hydraulic Seal Leak

An ST-80 Iron Roughneck experienced hydraulic fluid leakage from worn O-rings (P/N 51300-112-B). Replacing the OEM O-ring kits eliminated leaks and restored smooth pipe makeup/breakout operations.

Case 3: D1500UEDB Drawworks Spherical Roller Bearing Wear

Excessive drawworks vibration and noise stemmed from worn spherical roller bearings (P/N 7006B306). Fitting the OEM NOV bearings eliminated vibration and restored stable hoisting performance.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts compatible with all listed NOV floor equipment models?	Yes, all spare parts are custom-designed for PS-21, L-75, ST-80, 9015A030, D1500UEDB, and TDS 11 NOV models, with OEM-matched part numbers for perfect fit.
Do these components meet API 8C and API 7K industry standards?	Absolutely, all load-bearing and hoisting components comply withAPI 8C, API 7K, and ASME B18 standards, safe for critical drilling floor operations.
Can these parts be used for emergency on-site drilling floor repairs?	Yes, every component is designed for quick field installation, making them ideal for emergency breakdown fixes and routine preventive maintenance.

Procurement Guidance & Call to Action

For drilling floor maintenance teams, rig supervisors, and procurement specialists managing NOV PS-21, L-75, ST-80, D1500UEDB, and TDS 11 equipment, this parts list is the definitive resource to minimize unplanned rig downtime, uphold strict API safety standards, and source high-quality, OEM-compatible spare parts. Avoid the risks of substandard generic components, frequent equipment failures, and safety hazards by using this curated catalog as your go-to procurement and technical repair benchmark.

Invest in these durable, precision-engineered NOV floor equipment spare parts to streamline maintenance workflows, resolve on-site mechanical failures efficiently, and keep your drilling floor operating at peak safety and performance. Each component is built to endure the harsh conditions of 24/7 drilling operations, protecting your equipment investment and ensuring consistent, reliable pipe handling and hoisting performance for your rig.