PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-5687DBearing,sleeve

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-00-912-6382 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-912-6382 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-912-6382. Primary manufacturer part number: MIL-B-5687D.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material: OIL LUBRICATING LUBRICATION
  • Material: IRON ALLOY OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.2515 INCHES MINIMUM AND 0.2525 INCHES MAXIMUM IN
  • 3 verified cross-references
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 3120-00-912-6382, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN3120-00-912-6382
Primary Part NumberMIL-B-5687D
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
MaterialIRON ALLOY OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Body Inside Diameter0.2515 INCHES MINIMUM AND 0.2525 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-287-6470 INTERCHANGEABLE
Bearing,sleeve
3120-00-287-7480B5947 INTERCHANGEABLE
Bearing,sleeve
Dresser, Llc
5365-00-349-8523S30-8 INTERCHANGEABLE
Spacer,ring
Flaton Machine Works Inc.
4320-00-365-12292008 INTERCHANGEABLE
Rotor,pump
Eaton Aerospace, Llc Dba Jackson South
3120-00-489-4279HT901-1 INTERCHANGEABLE
Bearing,washer,thrust
Chrysler Corp Amplex Div
3120-00-661-8500 INTERCHANGEABLE
Bearing,sleeve
3120-00-684-1460309-0115-000 INTERCHANGEABLE
Bearing,sleeve
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3120-00-827-7940FB68-3 1-4 INTERCHANGEABLE
Bearing,sleeve
Altra Industrial Motion Corp.
3120-00-855-3814 INTERCHANGEABLE
Bearing,sleeve
3120-00-892-3953BACB10D63 INTERCHANGEABLE
Bearing,sleeve
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
MIL-B-5687D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
S308 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
S308 Chrysler Corp Amplex Div (USA)
Related Parts
3120-00-287-6470INTERCHANGEABLE
BEARING,SLEEVE
3120-00-287-7480INTERCHANGEABLE
BEARING,SLEEVE
B5947
5365-00-349-8523INTERCHANGEABLE
SPACER,RING
S30-8
4320-00-365-1229INTERCHANGEABLE
ROTOR,PUMP
2008
3120-00-489-4279INTERCHANGEABLE
BEARING,WASHER,THRUST
HT901-1
3120-00-661-8500INTERCHANGEABLE
BEARING,SLEEVE
3120-00-684-1460INTERCHANGEABLE
BEARING,SLEEVE
309-0115-000
3120-00-827-7940INTERCHANGEABLE
BEARING,SLEEVE
FB68-3 1-4
3120-00-855-3814INTERCHANGEABLE
BEARING,SLEEVE
3120-00-892-3953INTERCHANGEABLE
BEARING,SLEEVE
BACB10D63
8950-00-958-0139INTERCHANGEABLE
BARBECUE SAUCE
7826
3120-01-009-6773INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 3120-00-912-6382?

NSN 3120-00-912-6382 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 3120-00-912-6382?

NSN 3120-00-912-6382 has 3 cross-referenced part numbers: MIL-B-5687D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), S308 (Chrysler Realty Company Llc Dba Daimler Chrysler), S308 (Chrysler Corp Amplex Div).

What NSN replaces 3120-00-912-6382?

There are 12 known substitutes for 3120-00-912-6382: 3120-00-287-6470, 3120-00-287-7480, 5365-00-349-8523 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-B-5687D?

Key specifications for MIL-B-5687D: Corner Shape: SQUARE ALL CORNERS; Material: OIL LUBRICATING LUBRICATION; Material: IRON ALLOY OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 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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