PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILB5687TYPE1C0MP0SITI0NABearing,sleeve

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-00-534-5776 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-534-5776 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-534-5776. Primary manufacturer part number: MILB5687TYPE1C0MP0SITI0NA.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY OVERALL
  • Material Document and Classification: MIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Body Outside Diameter: 0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.5015 INCHES MINIMUM AND 0.5025 INCHES MAXIMUM IN
  • Material: OIL LUBRICATING LUBRICATION
  • Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION AND B COMPOSITION
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 3120-00-534-5776, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-534-5776
Primary Part NumberMILB5687TYPE1C0MP0SITI0NA
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY OVERALL
Material Document and ClassificationMIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Outside Diameter0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN
Body Inside Diameter0.5015 INCHES MINIMUM AND 0.5025 INCHES MAXIMUM IN
MaterialOIL LUBRICATING LUBRICATION
Nondefinitive Spec/std Data1 TYPE AND A COMPOSITION AND B COMPOSITION
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and ClassificationMIL-L-11734 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-522-6513 INTERCHANGEABLE
Bearing,sleeve
3120-00-534-5777 INTERCHANGEABLE
Bearing,sleeve
3120-00-534-5810 INTERCHANGEABLE
Bearing,sleeve
3120-00-625-8226 INTERCHANGEABLE
Bearing,sleeve
3120-00-661-3513 INTERCHANGEABLE
Bearing,sleeve
3120-00-661-3544AA1212-4 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
3120-00-661-5849B260-0245 INTERCHANGEABLE
Bearing,sleeve
Atlas Brass Foundry Inc
3120-00-661-7687F838-1 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
3120-00-661-9036 INTERCHANGEABLE
Bearing,sleeve
3120-00-662-2538 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
MILB5687TYPE1C0MP0SITI0NA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILB5687TYPE1C0MP0SITI0NB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A345776 CAGE 00000
Related Parts
3120-00-522-6513INTERCHANGEABLE
BEARING,SLEEVE
3120-00-534-5777INTERCHANGEABLE
BEARING,SLEEVE
3120-00-534-5810INTERCHANGEABLE
BEARING,SLEEVE
3120-00-625-8226INTERCHANGEABLE
BEARING,SLEEVE
3120-00-661-3513INTERCHANGEABLE
BEARING,SLEEVE
3120-00-661-3544INTERCHANGEABLE
BEARING,SLEEVE
AA1212-4
3120-00-661-5849INTERCHANGEABLE
BEARING,SLEEVE
B260-0245
3120-00-661-7687INTERCHANGEABLE
BEARING,SLEEVE
F838-1
3120-00-661-9036INTERCHANGEABLE
BEARING,SLEEVE
3120-00-662-2538INTERCHANGEABLE
BEARING,SLEEVE
3120-00-728-6055INTERCHANGEABLE
BEARING,SLEEVE
3120-00-752-6484INTERCHANGEABLE
BEARING,SLEEVE
A2304-6

Frequently Asked Questions

What is NSN 3120-00-534-5776?

NSN 3120-00-534-5776 is a Bearing,sleeve, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-534-5776?

NSN 3120-00-534-5776 has 3 cross-referenced part numbers: MILB5687TYPE1C0MP0SITI0NA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILB5687TYPE1C0MP0SITI0NB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A345776.

What NSN replaces 3120-00-534-5776?

There are 12 known substitutes for 3120-00-534-5776: 3120-00-522-6513, 3120-00-534-5777, 3120-00-534-5810 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILB5687TYPE1C0MP0SITI0NA?

Key specifications for MILB5687TYPE1C0MP0SITI0NA: Corner Shape: SQUARE ALL CORNERS; Material: COPPER ALLOY OVERALL; Material Document and Classification: MIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Body Outside Diameter: 0.6880 INCHES MINIMUM AND 0.6890 INCHES MAXIMUM IN. 10 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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