PartsTable TECHNICAL DATA SHEET

NSN 3120-01-481-3137Government record, cited

Bearing, Sleeve3120-01-481-3137

NSN 3120-01-481-3137 · NIIN 014813137

FSC 3120 — Bearings, Plain, Unmounted · FSG 31 — Bearings

Government record, cited

Also searched as 3120-01-481-3137 · 3120014813137 · NIIN 014813137 · 01-481-3137 · FSC 3120 Bearings, Plain, Unmounted · 123-1680561 · 123-1680561 · 123-1680562 PC 33 · 123-1680562 PC 33 · 123-1680561 PC 33

Nearby stock numbers ← 3120-01-481-3108 Bushing, Sleeve · 3120-01-481-3138 Bearing Half, Sleeve →

3120-01-481-3137 — Bearings, Plain, Unmounted

Features

Bearing,sleeve — FSC 3120
Corner Shape: SQUARE ALL CORNERS
Left End Body Diameter: 1.2200 INCHES NOMINAL IN
Flange Outside Diameter: 1.3750 INCHES NOMINAL IN
End to Flange Distance: 0.1545 INCHES NOMINAL IN
Style Designator: SOLID, EXTERNAL FLANGE
Material Document and Classification: MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 1.0625 INCHES NOMINAL IN

Identification

NSN: 3120-01-481-3137
NIIN: 014813137
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings

General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-481-3137, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3120-01-481-3137
Item Name	Bearing,sleeve
FSC / FSG	3120 / 31 — Bearings, Plain, Unmounted
Status	ACTIVE
Corner Shape	SQUARE ALL CORNERS
Left End Body Diameter	1.2200 INCHES NOMINAL IN
Flange Outside Diameter	1.3750 INCHES NOMINAL IN
End to Flange Distance	0.1545 INCHES NOMINAL IN
Style Designator	SOLID, EXTERNAL FLANGE
Material Document and Classification	MIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter	1.0625 INCHES NOMINAL IN
Right End Body Diameter	1.3750 INCHES NOMINAL IN
Flange Width	1.2500 INCHES NOMINAL IN
Material	STEEL COMP 8620 OVERALL

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

⇄ Related Items 8

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5315-01-481-3301123-1680562 PC 99 POSSIBLE MATCH

KEY,MACHINE

Possible match (shared part number)Naval Sea Systems Command

5315-01-481-3302123-1680562 PC 84 POSSIBLE MATCH

KEY,MACHINE

Possible match (shared part number)Naval Sea Systems Command

5315-01-481-3304123-1680561 PC 57 POSSIBLE MATCH

PIN,COTTER

Possible match (shared part number)Naval Sea Systems Command

5315-01-481-3325123-1680562 PC 86 POSSIBLE MATCH

PIN,TAPERED,PLAIN

Possible match (shared part number)Naval Sea Systems Command

5315-01-481-3331123-1680562 PC 94 POSSIBLE MATCH

PIN,COTTER

Possible match (shared part number)Naval Sea Systems Command

5306-01-481-3345123-1680561 PC 8 POSSIBLE MATCH

BOLT,SHOULDER

Possible match (shared part number)Naval Sea Systems Command

2040-01-481-5103123-1680562 PC 1 POSSIBLE MATCH

DOG,DOOR,MARINE

Possible match (shared part number)Naval Sea Systems Command

2040-01-481-5143123-1680562 PC 116 POSSIBLE MATCH

DOG,DOOR,MARINE

Possible match (shared part number)Naval Sea Systems Command

Cross-Reference Index

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

Reference documents

Reference	Meaning
123-1680561	7/2 Vendor item drawing reference U.S. Government activity
123-1680561	D/9 Drawing number reference only Naval Sea Systems Command
123-1680562 PC 33	3/2 Design control — primary reference U.S. Government activity
123-1680562 PC 33	5/1 Secondary reference Naval Sea Systems Command
123-1680561 PC 33	5/1 Secondary reference Naval Sea Systems Command
123-1680562	D/9 Drawing number reference only Naval Sea Systems Command

Related Parts

5315-01-481-3301POSSIBLE MATCH

KEY,MACHINE

123-1680562 PC 99

5315-01-481-3302POSSIBLE MATCH

KEY,MACHINE

123-1680562 PC 84

5315-01-481-3304POSSIBLE MATCH

PIN,COTTER

123-1680561 PC 57

5315-01-481-3325POSSIBLE MATCH

PIN,TAPERED,PLAIN

123-1680562 PC 86

5315-01-481-3331POSSIBLE MATCH

PIN,COTTER

123-1680562 PC 94

5306-01-481-3345POSSIBLE MATCH

BOLT,SHOULDER

123-1680561 PC 8

2040-01-481-5103POSSIBLE MATCH

DOG,DOOR,MARINE

123-1680562 PC 1

2040-01-481-5143POSSIBLE MATCH

DOG,DOOR,MARINE

123-1680562 PC 116

Frequently Asked Questions

What is NSN 3120-01-481-3137?

NSN 3120-01-481-3137 is a Bearing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.

What NSN replaces 3120-01-481-3137?

8 possible matches (shared part number, not a government interchangeability claim): 5315-01-481-3301, 5315-01-481-3302, 5315-01-481-3304. Verify interchangeability with system specifications before substitution.

What are the specifications of 3120-01-481-3137?

Key specifications for 3120-01-481-3137: Corner Shape: SQUARE ALL CORNERS; Left End Body Diameter: 1.2200 INCHES NOMINAL IN; Flange Outside Diameter: 1.3750 INCHES NOMINAL IN; End to Flange Distance: 0.1545 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 3120-01-481-3137 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.

PartsTable Design LLC · partstable.com