PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10640-91Bearing,sleeve

Cooper Machinery Services Llc · NSN 3120-00-662-1875 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-662-1875 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-662-1875. Primary manufacturer part number: 10640-91.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.7520 INCHES MINIMUM AND 0.7530 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY 932 OVERALL
  • Body Outside Diameter: 0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • 1 verified cross-reference
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 932 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-662-1875, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Cooper Machinery Services Llc. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-662-1875
Primary Part Number10640-91
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCooper Machinery Services Llc
StatusACTIVE
Body Inside Diameter0.7520 INCHES MINIMUM AND 0.7530 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY 932 OVERALL
Body Outside Diameter0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
7930-01-373-88441064091 INTERCHANGEABLE
Cleaning Compound,solvent-Deterg
National Industries for the Blind
Cross-Reference Index
Part NumberManufacturer
10640-91 PRIMARY Cooper Machinery Services Llc (USA)
Related Parts
7930-01-373-8844INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT-DETERG
1064091

Frequently Asked Questions

What is NSN 3120-00-662-1875?

NSN 3120-00-662-1875 is a Bearing,sleeve, manufactured by Cooper Machinery Services Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-662-1875?

NSN 3120-00-662-1875 has 1 cross-referenced part number: 10640-91 (Cooper Machinery Services Llc).

What NSN replaces 3120-00-662-1875?

There is 1 known substitute for 3120-00-662-1875: 7930-01-373-8844. Verify interchangeability with system specifications before substitution.

What are the specifications of 10640-91?

Key specifications for 10640-91: Body Inside Diameter: 0.7520 INCHES MINIMUM AND 0.7530 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material: COPPER ALLOY 932 OVERALL; Body Outside Diameter: 0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN. 7 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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