PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F451-1Bearing,sleeve

Beemer Precision Inc · NSN 3120-00-781-7298 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-781-7298 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-781-7298. Primary manufacturer part number: F451-1.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION
  • Material: OIL LUBRICATING LUBRICATION
  • Material: COPPER ALLOY OVERALL
  • Flange Width: 0.0620 INCHES NOMINAL IN
  • Flange Outside Diameter: 0.5570 INCHES MINIMUM AND 0.5670 INCHES MAXIMUM IN
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
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 3120-00-781-7298, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-781-7298
Primary Part NumberF451-1
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBeemer Precision Inc
StatusCANCELLED
Body Inside Diameter0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
Nondefinitive Spec/std Data1 TYPE AND A COMPOSITION
MaterialOIL LUBRICATING LUBRICATION
MaterialCOPPER ALLOY OVERALL
Flange Width0.0620 INCHES NOMINAL IN
Flange Outside Diameter0.5570 INCHES MINIMUM AND 0.5670 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Body Outside Diameter0.4390 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3120-00-691-5605F451-1 INTERCHANGEABLE
Bearing,sleeve
Fabrication Specialty Inc Dba Fabrication Specialty Inc
2530-00-737-1894FD4511 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
Cross-Reference Index
Part NumberManufacturer
3283614-13 Safran Landing Systems Canada Inc. (CAN)
FF-411-1 Chrysler Corp Amplex Div (USA)
MILB5687 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6412871-00 Duff-Norton Co Inc (USA)
FF411-1 Miller-Holzwarth Inc. (USA)
F451-1 PRIMARY Beemer Precision Inc (USA)
Related Parts
3120-00-691-5605INTERCHANGEABLE
BEARING,SLEEVE
F451-1
2530-00-737-1894INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FD4511

Frequently Asked Questions

What is NSN 3120-00-781-7298?

NSN 3120-00-781-7298 is a Bearing,sleeve, manufactured by Beemer Precision Inc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-781-7298?

NSN 3120-00-781-7298 has 6 cross-referenced part numbers: 3283614-13 (Safran Landing Systems Canada Inc.), FF-411-1 (Chrysler Corp Amplex Div), MILB5687 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6412871-00 (Duff-Norton Co Inc), FF411-1 (Miller-Holzwarth Inc.) and 1 more.

What NSN replaces 3120-00-781-7298?

There are 2 known substitutes for 3120-00-781-7298: 3120-00-691-5605, 2530-00-737-1894. Verify interchangeability with system specifications before substitution.

What are the specifications of F451-1?

Key specifications for F451-1: Body Inside Diameter: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 1 TYPE AND A COMPOSITION; Material: OIL LUBRICATING LUBRICATION; Material: COPPER ALLOY OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-781-7298 still in active supply?

NSN 3120-00-781-7298 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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