PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C31Bearing,washer,thrust

Butterworth, Inc. · NSN 3120-00-332-0275 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-332-0275 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-332-0275. Primary manufacturer part number: C31.
Features
  • Bearing,washer,thrust — FSC 3120
  • Outside Diameter: 0.9062 INCHES NOMINAL IN
  • Diameter: 0.3750 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Overall Thickness: 0.1250 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Style Designator: ROUND
  • Corner Shape: SQUARE ALL CORNERS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Structural fastening and assembly
  • Equipment mounting
General Description

The Bearing,washer,thrust, cataloged under National Stock Number 3120-00-332-0275, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Butterworth, Inc.. Government technical data includes 8 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
NSN3120-00-332-0275
Primary Part NumberC31
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerButterworth, Inc.
StatusACTIVE
Outside Diameter0.9062 INCHES NOMINAL IN
Diameter0.3750 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Overall Thickness0.1250 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Style DesignatorROUND
Corner ShapeSQUARE ALL CORNERS
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2940-00-076-2601C31P INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
5330-00-295-8839C31 INTERCHANGEABLE
Gasket
Gardner Denver Inc.
5340-00-604-9656C31 INTERCHANGEABLE
Clamp,synchro
Designatronics Incorporated Div Sterling Instruments Div
2940-00-825-4397C120E INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
Cross-Reference Index
Part NumberManufacturer
C31 PRIMARY Butterworth, Inc. (USA)
Related Parts
2940-00-076-2601INTERCHANGEABLE
FILTER ELEMENT,FLUID
C31P
5330-00-295-8839INTERCHANGEABLE
GASKET
C31
5340-00-604-9656INTERCHANGEABLE
CLAMP,SYNCHRO
C31
2940-00-825-4397INTERCHANGEABLE
FILTER ELEMENT,FLUID
C120E

Frequently Asked Questions

What is NSN 3120-00-332-0275?

NSN 3120-00-332-0275 is a Bearing,washer,thrust, manufactured by Butterworth, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-332-0275?

NSN 3120-00-332-0275 has 1 cross-referenced part number: C31 (Butterworth, Inc.).

What NSN replaces 3120-00-332-0275?

There are 4 known substitutes for 3120-00-332-0275: 2940-00-076-2601, 5330-00-295-8839, 5340-00-604-9656 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C31?

Key specifications for C31: Special Features: W/2 GROOVES EACH SIDE; Outside Diameter: 0.9062 INCHES NOMINAL IN; Diameter: 0.3750 INCHES NOMINAL IN; Center Hole Shape Style: ROUND. 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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