PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-129-8Bearing,plain,self-Aligning

Bell Textron Inc · NSN 3120-01-616-0317 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-616-0317 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-616-0317. Primary manufacturer part number: 20-129-8.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Inner Member Width: 0.5000 INCHES NOMINAL IN
  • Outer Member Outside Diameter: 1.0120 INCHES NOMINAL IN
  • Bore Diameter: 0.5000 INCHES NOMINAL IN
  • Outer Member Width: 0.3900 INCHES NOMINAL IN
  • Lubrication Feature: SELF-LUBRICATING LINER RACE LINER
  • Material: STEEL CORROSION RESISTING INNER MEMBER
  • Style Designator: WITH INSERT AND/OR LINER WITH STAKING GROOVE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Inner Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-616-0317, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-01-616-0317
Primary Part Number20-129-8
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBell Textron Inc
StatusCANCELLED
Inner Member Width0.5000 INCHES NOMINAL IN
Outer Member Outside Diameter1.0120 INCHES NOMINAL IN
Bore Diameter0.5000 INCHES NOMINAL IN
Outer Member Width0.3900 INCHES NOMINAL IN
Lubrication FeatureSELF-LUBRICATING LINER RACE LINER
MaterialSTEEL CORROSION RESISTING INNER MEMBER
Style DesignatorWITH INSERT AND/OR LINER WITH STAKING GROOVE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-035-8708 INTERCHANGEABLE
Contact,electrical
5360-00-072-090320129 INTERCHANGEABLE
Spring,helical,extension
Unipress Corporation
3110-00-100-6171 INTERCHANGEABLE
Ball,bearing
5133-00-228-1378 INTERCHANGEABLE
Drill,twist
5930-00-508-0562 INTERCHANGEABLE
Switch,rotary
5950-00-645-309020129 INTERCHANGEABLE
Transformer,power Autotransforme
Freed Transformer Co
5360-00-664-784871078 INTERCHANGEABLE
Spring,helical,compression
Dressta North America Ltd
5360-00-737-83097378309 INTERCHANGEABLE
Spring,helical,compression
U S Army Tank Automotive Command Amsta-Im-Mm
5342-00-998-2817 INTERCHANGEABLE
Boot,drain Tub
7025-01-063-60395200-357 INTERCHANGEABLE
Intermediate Drive Assembly
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
20-129-8 PRIMARY Bell Textron Inc (USA)
AKB08V4018 New Hampshire Ball Bearings Inc Div Astro Division (USA)
20-129 Bell Textron Inc (USA)
20-129-8 New Hampshire Ball Bearings Inc Div Astro Division (USA)
Related Parts
5999-00-035-8708INTERCHANGEABLE
CONTACT,ELECTRICAL
5360-00-072-0903INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
20129
3110-00-100-6171INTERCHANGEABLE
BALL,BEARING
5133-00-228-1378INTERCHANGEABLE
DRILL,TWIST
5930-00-508-0562INTERCHANGEABLE
SWITCH,ROTARY
5950-00-645-3090INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
20129
5360-00-664-7848INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
71078
5360-00-737-8309INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
7378309
5342-00-998-2817INTERCHANGEABLE
BOOT,DRAIN TUB
7025-01-063-6039INTERCHANGEABLE
INTERMEDIATE DRIVE ASSEMBLY
5200-357
5360-01-196-6801INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20129
1650-01-219-0957INTERCHANGEABLE
CAP ASSEMBLY,PUMP
20129

Frequently Asked Questions

What is NSN 3120-01-616-0317?

NSN 3120-01-616-0317 is a Bearing,plain,self-Aligning, manufactured by Bell Textron Inc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-01-616-0317?

NSN 3120-01-616-0317 has 4 cross-referenced part numbers: 20-129-8 (Bell Textron Inc), AKB08V4018 (New Hampshire Ball Bearings Inc Div Astro Division), 20-129 (Bell Textron Inc), 20-129-8 (New Hampshire Ball Bearings Inc Div Astro Division).

What NSN replaces 3120-01-616-0317?

There are 12 known substitutes for 3120-01-616-0317: 5999-00-035-8708, 5360-00-072-0903, 3110-00-100-6171 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-129-8?

Key specifications for 20-129-8: Inner Member Width: 0.5000 INCHES NOMINAL IN; End Item Identification: V-22 AIRCRAFT; Outer Member Outside Diameter: 1.0120 INCHES NOMINAL IN; Bore Diameter: 0.5000 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-01-616-0317 still in active supply?

NSN 3120-01-616-0317 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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