PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA880-4Bearing,sleeve

Beemer Precision Inc · NSN 3120-00-661-5526 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-5526 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-5526. Primary manufacturer part number: AA880-4.
Features
  • Bearing,sleeve — FSC 3120
  • Material: LUBRICANT LUBRICATION
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY 841 OVERALL
  • Body Outside Diameter: 0.8760 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Lubricant Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-5526, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Beemer Precision Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-661-5526
Primary Part NumberAA880-4
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBeemer Precision Inc
StatusACTIVE
MaterialLUBRICANT LUBRICATION
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationMIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY 841 OVERALL
Body Outside Diameter0.8760 INCHES MINIMUM AND 0.8770 INCHES MAXIMUM IN
Body Inside Diameter0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6750-00-463-4270 INTERCHANGEABLE
Developer,photographic
4730-01-052-0204SS-404-1 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
Swagelok Co
4320-01-323-8355 INTERCHANGEABLE
Cylinder Sleeve
5305-01-656-508632405 INTERCHANGEABLE
Screw,cap,hexagon Head
Eagle Components, Inc
5120-01-687-449832405 INTERCHANGEABLE
Wrench,open End
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
AA880-4 PRIMARY Beemer Precision Inc (USA)
MIL-B-5687 TY 1 COMP A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
32405 Allianz Sweeper Company (USA)
AA880-4 Chrysler Corp Amplex Div (USA)
XX32405 Allianz Sweeper Company (USA)
Related Parts
6750-00-463-4270INTERCHANGEABLE
DEVELOPER,PHOTOGRAPHIC
4730-01-052-0204INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
SS-404-1
4320-01-323-8355INTERCHANGEABLE
CYLINDER SLEEVE
5305-01-656-5086INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
32405
5120-01-687-4498INTERCHANGEABLE
WRENCH,OPEN END
32405

Frequently Asked Questions

What is NSN 3120-00-661-5526?

NSN 3120-00-661-5526 is a Bearing,sleeve, manufactured by Beemer Precision Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-5526?

NSN 3120-00-661-5526 has 5 cross-referenced part numbers: AA880-4 (Beemer Precision Inc), MIL-B-5687 TY 1 COMP A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 32405 (Allianz Sweeper Company), AA880-4 (Chrysler Corp Amplex Div), XX32405 (Allianz Sweeper Company).

What NSN replaces 3120-00-661-5526?

There are 5 known substitutes for 3120-00-661-5526: 6750-00-463-4270, 4730-01-052-0204, 4320-01-323-8355 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA880-4?

Key specifications for AA880-4: Material: LUBRICANT LUBRICATION; Corner Shape: SQUARE ALL CORNERS; Material Document and Classification: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 8 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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