OEM Replacement Parts for NOV PS 30 Power Slip

Introduction

This dedicated spare parts portfolio is exclusively engineered for the NOV PS 30 Power Slip (serial number NL-0154421), targeting a specialized group of end-users: drilling rig maintenance technicians, oilfield procurement managers, power slip repair specialists, wellsite supervisors, and drilling equipment asset managers. These stakeholders face critical operational pain points: unplanned rig downtime caused by sudden power slip component failures in remote drilling locations, compatibility issues with generic spare parts that disrupt hydraulic and mechanical performance, premature wear of slip pins, bearings and seals under heavy pipe loads, delayed repairs due to hard-to-source OEM-spec components, and lack of a standardized reference for both scheduled maintenance and emergency breakdown troubleshooting.

Product Overview

This NOV PS 30 power slip spare parts collection covers all mission-critical system categories: mechanical structural components (eccentric pins, cam blocks, hinge pins, slip pins), hydraulic parts (actuators, valves, hydraulic U-cups, connectors), lubrication components (grease fittings, grease restrictors, flow rings), fastening hardware (bolts, screws, washers, cotter pins), sealing parts (O-rings, backup rings, seal kits), and auxiliary components (slip indicators, springs, expander rings, hose/tube assemblies). All parts are designed for tool-free direct on-site installation with no custom modifications, eliminating compatibility risks and reducing repair labor time by up to 45% compared to non-standard aftermarket alternatives.

Core Functional Specifications

These replacement parts support the full operational functionality of the NOV PS 30 power slip: reliable pipe clamping and release with 0.3-second actuation response, synchronized slip movement via precision shafts, stable hydraulic pressure control (rated working pressure up to 3000 PSI), consistent lubrication flow through calibrated restrictors, and accurate slip position indication. Key performance metrics include: load-bearing pins with 120,000 PSI tensile strength, hydraulic seals with 99% leak-proof efficiency, and grease fittings designed for 5,000+ lubrication cycles without clogging—ensuring consistent performance under extreme drilling loads and harsh field conditions.

Structural & Material Advantages

• Mechanical Load Components: Forged alloy steel pins and cam blocks for maximum load capacity, heat-treated Glacier bearings (MB2225DU) with low-friction design, and high-strength steel springs with 2:1 load safety factor to prevent fatigue failure
• Hydraulic & Sealing Parts: Nitrile rubber (NBR) hydraulic U-cups and O-rings for oil and temperature resistance (operating range -20°C to 120°C), precision-machined o-ring boss connectors for leak-free hydraulic connections, and dual-element seal kits for long-lasting actuator performance
• Lubrication & Fastening Parts: Corrosion-resistant steel grease fittings (straight, 45°, 90°) for reliable lubricant delivery, grade 8 hex cap screws with UNC thread standards for secure fastening, and heavy-duty lock washers to prevent loosening under high vibration

Applicable Operating Conditions

These NOV PS 30 power slip spare parts are engineered for heavy-duty onshore and offshore drilling scenarios, including oil and gas exploration drilling, directional drilling, land rig pipe handling, and offshore platform well construction. They perform reliably in ambient temperatures ranging from -25°C to 80°C, withstand high dust, mud contamination, corrosive saltwater, and constant rig vibration, and operate flawlessly under continuous 24-hour pipe handling cycles. Fully compliant with global drilling safety standards, these parts are suitable for remote land rigs, offshore jack-up rigs, and semi-submersible drilling units.

Professional Maintenance & Troubleshooting Recommendations

To maximize part lifespan and minimize costly rig downtime, follow these field-proven maintenance protocols aligned with NOV equipment standards: inspect slip pins, hinge pins and bearings every 200 drilling hours, replacing worn parts when wear depth exceeds 1mm; lubricate all load-bearing components via grease fittings every 100 hours with high-temperature lithium complex grease; rebuild actuators using seal kits every 500 hours to prevent hydraulic leaks; check hydraulic tubes, connectors and valves quarterly for damage or blockages; and conduct a full system inspection every 1,000 hours to replace aging springs, fasteners and seals. This framework serves as a scheduled procurement guide and a quick-reference tool to diagnose hydraulic leaks, slip slippage, pin wear, and actuation failures.

We supply the following spare parts:

Make	NOV
Model	PS 30
Sr.no.	NL-0154421
Sr.no.	PN	Item description
1	1014	EXCENTRIC PIN
2	7887	LYNCH PIN
3	53201	STRAIGHT GREASE FITTING
4	202210	SYNCHRONISATION SHAFT KEY
5	202211	LOCK FOR VARCO BJ NATIONAL
6	202215	COVER PLATE LOCK
7	202226	CYLINDER PROTECTION RING
8	202409	SYNCHRONISATION SHAFT
9	50004523	ROD END FOR HINGE BLOCK LOCK PS-30
10	50004531	PIN for COVER-PLATE LOCK PS21/30
11	50004548	COVER PLATE LOCK RETAINER PS-21/30
12	50004575	LEFT CAM BLOCK PS-30
13	50004576	RIGHT CAM BLOCK PS-30
14	50004747	Slip indicator pin with grease holes
15	50004748	Modified Plug external pipe_ countersunk hex
16	202203-55	ACTUATOR LH PS INT. REL.
17	202204-55	ACTUATOR RH PS INT. REL
18	202349-15	GREASE RESTRICTOR 1. 5MM
19	202349-25	GREASE RESTRICTOR 2.5MM
20	202349-50	GREASE RESTRICTOR 5MM
21	202405-1	REMOVABLE HINGE PIN ASSEMBLY
22	202406-1	STATIONARY HINGE PIN ASSEMBLY
23	202407	LOCK BAR FOR STATIONARY HINGE P
24	51403-20	COTTER PIN 3/16 X 2 1/2
25	51506-26	PIN_GROOVED_TAPER-51506-26
26	948051-2	S-HOOK
27	979386-55	COMPRESSION SPRING
28	979455-10	EXPANDER
29	979771-2225	GLACIER BEARING MB2225DU
30	202283	LATCH-PIN
31	202290	RING , CENTERSLIPS
32	202294-1	COMPRESSION SPRING
33	202370	SLIP HINGE PIN
34	202372	SLIP MOUNTING PIN
35	202393	SLIP SPRING
36	979386-5	COMPRESSION SPRING
37	202268	FLOW RING FOR HINGE PIN
38	202269	BACKUP RING FOR HINGE PIN
39	202383	HYDRAULIC HINGE PIN
40	202388	RAM HINGE PIN
41	202389	KNUCKLE PIN
42	202390	PIN RETAINER
43	979504-5	Male connector with o-ring
44	51708-24-C	Bolt, shoulder socket head (unc-3a)
45	50004559-13	Tube rams close rh
46	56506-6-4-S	Elb, 90′ ext pipe /37′
47	979504-6	Male connector with o-ring
48	202289	Handle,center slips
49	50012-16-C8D	Screw, cap-hex hd (unc-2a)
50	979504-12	Male connector with o-ring
51	50012-24-C8D	Screw, cap-hex hd (unc-2a)
52	56519-6-6-S	Elbow, o-ring boss /37′
53	94518-13HN	Sun counter balance valve
54	56506-4-4-S	Elb, 90′ ext pipe /37′
55	50004559-12	Tube rams open rh
56	50004559-1	Tube grease lh slip
57	59001008-5	Chain, straight link, short,dia 5mm
58	53300-524	Cable tie t120r
59	53202	Fitting,grease,45 deg
60	53203	Fitting,grease,90 deg
61	50004559-11	Tube from valve rh
62	50004559-6	Tube slips lh
63	50010-10-C8D	Screw, cap-hex (unc-2a)
64	56551-02-06-S	Connector,int pipe o-ring boss
65	979504-3	Male connector o-ring
66	979962-2538	Hydraulic u-cup
67	51302-223	Ring, back ring
68	56529-6-6-S	Connector, o-ring /37′
69	56518-6-6-S	Elbow, 90′ int 37′ /37′
70	50004559-14	Tube slips rh
71	202263	Knuckle, ps21 device
72	202391	Hose assembly centering device
73	56506-2-4-S	Elb, 90′ pipe /37′
74	56507-2-4-S	T adapter male/jic male/nptf
75	50006-12-C8D	Screw, cap-hex (unc-2a)
76	56529-4-4-S	Connector, o-ring /37′
77	56519-6-4-S	Elbow, o-ring /37′
78	979504-8	Male connector o-ring
79	979942-4-4	Adapter o-ring / jic swivel
80	51008-C	Washer, lock-heavy
81	51010-C	Washer, lock-heavy
82	56529-8-6-S	Connector, o-ring /37′
83	50004577	Shaft center-slip
84	50010-8-C8D	Screw, cap-hex (unc-2a)
85	50008-6-C8D	Screw, cap-hex (unc-2a)
86	56519-4-4-S	Elbow, o-ring /37′
87	93547-1B30N	Sun pilot open check valve
88	56519-4-6-S	Elbow, o-ring /37′
89	50910-C	Washer, lock-regular
90	50806-N-C	Washer, flat
91	979935-2-4	Elbow 90deg to jic
92	50004559-15	Tube slips rh
93	50004559-10	Tube to valve rh
94	50004559-9	Tube signal actuator
95	50004559-8	Tube grease slip
96	50004559-7	Tube slips lh
97	50004559-5	Tube rams lh
98	50004559-4	Tube rams lh
99	56548-4-4-S	Swivel, 45
100	56529-6-4-S	Connector, o-ring /37′
101	56526-6-6-S	Tee, 37′ /swivel int 37′
102	979504-4	Male connector o-ring
103	59000142-1	Inline standard valve
104	50012-72-C8D	Screw, cap-hex (unc-2a)
105	202203-41	Seal kit l.h. actuator
106	50010-24-C8D	Screw, cap-hex (unc-2a)
107	979512-10	Plug 7/8″-14 o-ring socket type
108	979512-2	Plug 9/16-18 o-ring socket type
109	979512-1	Plug 3/4″-16 o-ring socket type
110	980473-2	Hoist swivel adb, modified
111	202306	Greasing sticker,
112	30107236-1AN	Direct acting valve
113	979485-15	Lock washer din 432-17a2
114	50006-8-C8D	Screw, cap-hex (unc-2a)
115	50006-5-C8D	Screw, cap-hex (unc-2a)
116	50006-4-C8D	Screw, cap-hex
117	50906-C	Washer, lock-regular
118	50008-12-C8D	Screw, cap-hex (unc-2a)
119	56526-4-4-S	Tee, 37′ /swivel int 37′
120	53000-2	Plug,external pipe- hex
121	50012-18-C8D	Screw, cap-hex (unc-2a)
122	979966-1	Relief valve
123	51012-C	Washer, lock-heavy
124	949708-223	O-ring id thck
125	202204-41	Seal kit rh actuator
126	50008-22-C8D	Screw, cap-hex (unc-2a)
127	50010-16-C8D	Screw, cap-hex (unc-2a)
128	50004559-3	Tube to indicator valve
129	979512-3	Plug 7/16-20 o-ring socket type
130	979532-2-4	Nipple, straight, to jic
131	50008-8-C8D	Screw, cap-hex (unc-2a)
132	939352-66	Washer, lock-light
133	56557-6-6-S	Elbow, 45′ boss /37′
134	51708-16-C	Bolt, shoulder head (unc-3a)
135	56518-4-4-S	Elbow, 90′ int 37′ /37′

On-Site Fault Repair Case Studies

Case 1: NOV PS 30 Slip Hinge Pin Wear & Clamping Failure

A land drilling rig experienced inconsistent pipe clamping due to worn slip hinge pins (202370) and damaged backup rings. Replacing the faulty pins and matching flow/backup rings restored proper slip alignment and full clamping force, resuming drilling operations within 2 hours and avoiding a costly rig shutdown.

Case 2: Hydraulic Actuator Leak & Actuation Delay

An offshore drilling platform reported slow slip actuation and hydraulic fluid leakage, traced to a worn left-hand actuator seal kit (202203-41). Installing the OEM-spec seal kit eliminated fluid leaks and restored instant actuation response, ensuring compliance with offshore drilling safety protocols.

Case 3: Grease Restrictor Clog & Bearing Wear

A drilling crew noticed abnormal friction noise from the power slip, caused by clogged 1.5MM grease restrictors (202349-15) that starved Glacier bearings of lubrication. Replacing the clogged restrictors and lubricating the bearings prevented catastrophic bearing failure and extended component lifespan.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts fully compatible with NOV PS 30 Power Slip (S/N NL-0154421)?	Yes, every spare part is manufactured to exact OEM specifications and dimensional standards, ensuring direct fit and seamless compatibility with the PS 30 power slip with no modifications or adjustments required.
What is the typical service life of these NOV PS 30 spare parts?	Load-bearing pins and bearings last 4,000-6,000 drilling hours, hydraulic seals and seal kits have a 2,500-hour service life, and grease fittings/fasteners maintain reliable performance for 8,000+ hours with regular maintenance.
Can these parts be used for both planned maintenance and emergency repairs?	Absolutely, these spare parts are designed for scheduled preventive maintenance and urgent on-site breakdown repairs, making them ideal for minimizing downtime in remote land and offshore drilling locations.

Conclusion & Procurement Guidance

For procurement professionals, maintenance technicians, and wellsite supervisors responsible for the NOV PS 30 Power Slip (S/N NL-0154421), this parts document is a dual-purpose critical resource: a standardized procurement reference for stocking essential spares and a technical manual for resolving complex on-site equipment failures. Each component is engineered to address the most common power slip pain points—hydraulic leaks, pin wear, bearing failure, and actuation issues—while delivering long-term durability, cost efficiency, and compliance