PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A331Bearing,sleeve

Chrysler Corp Amplex Div · NSN 3120-00-661-7323 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-7323 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-7323. Primary manufacturer part number: A331.
Features
  • Bearing,sleeve — FSC 3120
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
  • Material: OIL LUBRICATING LUBRICATION
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-7323, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Chrysler Corp Amplex Div. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-661-7323
Primary Part NumberA331
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerChrysler Corp Amplex Div
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
MaterialOIL LUBRICATING LUBRICATION
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data1 TYPE AND A COMPOSITION
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter0.3135 INCHES MINIMUM AND 0.3145 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4730-00-266-0535SAE J512 5-2 010102B INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
5935-00-406-61418004270G1 INTERCHANGEABLE
Retainer,electrical Connector
L3harris Technologies, Inc. Dba Harris Corporation
4810-00-453-7205A331 INTERCHANGEABLE
Seat,valve
Fisher Controls Co Inc
6240-00-469-7986A331 INTERCHANGEABLE
Lamp,glow
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
6130-00-500-3080 INTERCHANGEABLE
Rectifier Assembly,metallic
5315-00-721-8382A3-31 INTERCHANGEABLE
Pin,straight,headless
Roller Bearing Co of America, Inc Div Pic Design
9390-01-021-2223 INTERCHANGEABLE
Tape,reflective
4030-01-115-3367 INTERCHANGEABLE
Hook,hoist
5910-01-435-7748908-276-0001 INTERCHANGEABLE
Capacitor Assembly
Northrop Grumman Systems Corporation
5340-01-536-5477A-331 INTERCHANGEABLE
Plug,vent
Dwyer Instruments Inc
Cross-Reference Index
Part NumberManufacturer
A331 PRIMARY Chrysler Corp Amplex Div (USA)
AA331 PRIMARY Beemer Precision Inc (USA)
MILB5687TYPE1C0MP0SITI0NA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A331 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
SL188-3 Masten Bunting Eagle-Picher Bearings Div Eagle-Picher Industries Inc (USA)
AA331 PRIMARY Chrysler Corp Amplex Div (USA)
Related Parts
4730-00-266-0535INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 5-2 010102B
5935-00-406-6141INTERCHANGEABLE
RETAINER,ELECTRICAL CONNECTOR
8004270G1
4810-00-453-7205INTERCHANGEABLE
SEAT,VALVE
A331
6240-00-469-7986INTERCHANGEABLE
LAMP,GLOW
A331
6130-00-500-3080INTERCHANGEABLE
RECTIFIER ASSEMBLY,METALLIC
5315-00-721-8382INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
A3-31
9390-01-021-2223INTERCHANGEABLE
TAPE,REFLECTIVE
4030-01-115-3367INTERCHANGEABLE
HOOK,HOIST
5910-01-435-7748INTERCHANGEABLE
CAPACITOR ASSEMBLY
908-276-0001
5340-01-536-5477INTERCHANGEABLE
PLUG,VENT
A-331

Frequently Asked Questions

What is NSN 3120-00-661-7323?

NSN 3120-00-661-7323 is a Bearing,sleeve, manufactured by Chrysler Corp Amplex Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-7323?

NSN 3120-00-661-7323 has 6 cross-referenced part numbers: A331 (Chrysler Corp Amplex Div), AA331 (Beemer Precision Inc), MILB5687TYPE1C0MP0SITI0NA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A331 (Chrysler Realty Company Llc Dba Daimler Chrysler), SL188-3 (Masten Bunting Eagle-Picher Bearings Div Eagle-Picher Industries Inc) and 1 more.

What NSN replaces 3120-00-661-7323?

There are 10 known substitutes for 3120-00-661-7323: 4730-00-266-0535, 5935-00-406-6141, 4810-00-453-7205 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A331?

Key specifications for A331: Material: COPPER ALLOY OVERALL; Overall Length: 0.1825 INCHES MINIMUM AND 0.1925 INCHES MAXIMUM IN; Body Inside Diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Material: OIL LUBRICATING LUBRICATION. 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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