Bearing Unit, Ball3130-01-254-7377

NSN 3130-01-254-7377 · NIIN 012547377

FSC 3130 — Bearings, Mounted · FSG 31 — Bearings

Government record, cited

Also searched as 3130-01-254-7377 · 3130012547377 · NIIN 012547377 · 01-254-7377 · FSC 3130 Bearings, Mounted · SSFT-8 · FPS2-25-1/2 · 63C517577P1

Nearby stock numbers ← 3130-01-254-7227 Housing, Bearing Unit · 3130-01-254-8338 Bearing Unit, Ball →

3130-01-254-7377 — Bearings, Mounted

Features

Bearing Unit,ball — FSC 3130
Assembly Overall Length: 1.000 INCHES MAXIMUM IN
Flange Thickness: 0.075 INCHES MAXIMUM IN
Mounting Hole Type: SQUARE
Block Type: FIXED
Style Designator: FLANGE BLOCK
Overall Outside Diameter: 3.250 INCHES MAXIMUM IN
Mounting Hole Width: 0.281 INCHES NOMINAL IN

Identification

NSN: 3130-01-254-7377
NIIN: 012547377
FSC: 3130 — Bearings, Mounted
FSG: 31 — Bearings

General Description

The Bearing Unit,ball, cataloged under National Stock Number 3130-01-254-7377, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3130-01-254-7377
Item Name	Bearing Unit,ball
FSC / FSG	3130 / 31 — Bearings, Mounted
Status	ACTIVE
Assembly Overall Length	1.000 INCHES MAXIMUM IN
Flange Thickness	0.075 INCHES MAXIMUM IN
Mounting Hole Type	SQUARE
Block Type	FIXED
Style Designator	FLANGE BLOCK
Overall Outside Diameter	3.250 INCHES MAXIMUM IN
Mounting Hole Width	0.281 INCHES NOMINAL IN
Bolt Circle Diameter	2.500 INCHES NOMINAL IN
Surface Treatment	ZINC OVERALL
Bore Diameter	0.5000 INCHES NOMINAL IN
Material	STEEL OVERALL
Housing Length	0.265 INCHES NOMINAL IN
Housing Diameter	2.375 INCHES MAXIMUM IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
SSFT-8	5/9 Secondary reference Emerson Power Transmission Corporation Div Ept
FPS2-25-1/2	3/2 Design control — primary reference U.S. Government activity
63C517577P1	7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rotary and Mission Systems

No interchangeability data on file.

Other items in FSC 3130 — Bearings, Mounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3130-00-001-5118

3130-00-001-5118 · Item name not on file

3130-00-001-5137

BEARING UNIT,BALL

3130-00-001-6585

3130-00-001-6585 · Item name not on file

3130-00-003-0422

3130-00-003-0422 · Item name not on file

3130-00-003-0455

3130-00-003-0455 · Item name not on file

3130-00-003-0794

BEARING UNIT,BALL

3130-00-003-2802

BEARING UNIT,BALL

3130-00-003-9535

3130-00-003-9535 · Item name not on file

Frequently Asked Questions

What is NSN 3130-01-254-7377?

NSN 3130-01-254-7377 is a Bearing Unit,ball, classified under FSC 3130, Bearings, Mounted. Status: active.

What are the specifications of 3130-01-254-7377?

Key specifications for 3130-01-254-7377: Assembly Overall Length: 1.000 INCHES MAXIMUM IN; Flange Thickness: 0.075 INCHES MAXIMUM IN; Mounting Hole Type: SQUARE; Block Type: FIXED. 13 specifications are documented in the U.S. Government catalog.

Is NSN 3130-01-254-7377 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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