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 3120-00-522-6513 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-522-6513 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-522-6513. Primary manufacturer part number: MILB5687TYPE1C0MP0SITI0NA.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material: OIL LUBRICATING LUBRICATION
  • Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION AND B COMPOSITION
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material Document and Classification: MIL-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
  • Material: COPPER ALLOY OVERALL
  • Material Document and Classification: MIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-522-6513, 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 2 manufacturers, 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
NSN3120-00-522-6513
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
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
MaterialCOPPER ALLOY OVERALL
Material Document and ClassificationMIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Outside Diameter0.8740 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
Body Inside Diameter0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-534-5776 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
5226513 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
MILB5687TYPE1C0MP0SITI0NB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3120-00-534-5776INTERCHANGEABLE
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 3120-00-522-6513?

NSN 3120-00-522-6513 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 3120-00-522-6513?

NSN 3120-00-522-6513 has 3 cross-referenced part numbers: MILB5687TYPE1C0MP0SITI0NA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5226513 (U S Army Tank Automotive Command Amsta-Im-Mm), MILB5687TYPE1C0MP0SITI0NB (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-522-6513?

There are 12 known substitutes for 3120-00-522-6513: 3120-00-534-5776, 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: OIL LUBRICATING LUBRICATION; Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION AND B COMPOSITION; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 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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