PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C131Roller,linear-Rotary Motion

American Standard Inc Westinghouse Air Brake Co Div · NSN 3120-00-424-0538 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-424-0538 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-424-0538. Primary manufacturer part number: C131.
Features
  • Roller,linear-Rotary Motion — FSC 3120
  • Material: STEEL
  • Chamfer/radius of Outside Corner: 0.031 IN.RADIUS IN
  • Bore Inside Diameter: 3.850 INCHES MINIMUM AND 3.876 INCHES MAXIMUM IN
  • Chamfer/radius of Inside Corner: 0.062 IN.RADIUS IN
  • Metallic Hardness Rating: 60.0 MINIMUM ROCKWELL C AND 65.0 MAXIMUM ROCKWELL C
  • Style Designator: PLAIN
  • Casehardening Indicator: NOT CASEHARDENED
Applications
  • Applications requiring Steel construction
General Description

The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-00-424-0538, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is American Standard Inc Westinghouse Air Brake Co Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-424-0538
Primary Part NumberC131
Item NameRoller,linear-Rotary Motion
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAmerican Standard Inc Westinghouse Air Brake Co Div
StatusACTIVE
MaterialSTEEL
Chamfer/radius of Outside Corner0.031 IN.RADIUS IN
Bore Inside Diameter3.850 INCHES MINIMUM AND 3.876 INCHES MAXIMUM IN
Chamfer/radius of Inside Corner0.062 IN.RADIUS IN
Metallic Hardness Rating60.0 MINIMUM ROCKWELL C AND 65.0 MAXIMUM ROCKWELL C
Style DesignatorPLAIN
Casehardening IndicatorNOT CASEHARDENED
Outside Diameter5.922 INCHES MINIMUM AND 5.954 INCHES MAXIMUM IN
Face Width2.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2940-00-505-671051081 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
4820-00-541-5577C131 INTERCHANGEABLE
Valve,safety Relief
Keen Manufacturing Inc
3455-01-032-2896 INTERCHANGEABLE
File,rotary
5998-01-337-4308C131 INTERCHANGEABLE
Circuit Card Assembly
Custom Power, Ltd.
Cross-Reference Index
Part NumberManufacturer
C131 American Standard Inc Westinghouse Air Brake Co Div (USA)
Related Parts
2940-00-505-6710INTERCHANGEABLE
FILTER ELEMENT,FLUID
51081
4820-00-541-5577INTERCHANGEABLE
VALVE,SAFETY RELIEF
C131
3455-01-032-2896INTERCHANGEABLE
FILE,ROTARY
5998-01-337-4308INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
C131

Frequently Asked Questions

What is NSN 3120-00-424-0538?

NSN 3120-00-424-0538 is a Roller,linear-Rotary Motion, manufactured by American Standard Inc Westinghouse Air Brake Co Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-424-0538?

NSN 3120-00-424-0538 has 1 cross-referenced part number: C131 (American Standard Inc Westinghouse Air Brake Co Div).

What NSN replaces 3120-00-424-0538?

There are 4 known substitutes for 3120-00-424-0538: 2940-00-505-6710, 4820-00-541-5577, 3455-01-032-2896 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C131?

Key specifications for C131: Material: STEEL; Chamfer/radius of Outside Corner: 0.031 IN.RADIUS IN; Bore Inside Diameter: 3.850 INCHES MINIMUM AND 3.876 INCHES MAXIMUM IN; Chamfer/radius of Inside Corner: 0.062 IN.RADIUS IN. 9 total characteristics are documented in the Federal Logistics Information System.

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