Bushing, Sleeve3120-01-686-1918

NSN 3120-01-686-1918 · NIIN 016861918

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

Government record, cited

Also searched as 3120-01-686-1918 · 3120016861918 · NIIN 016861918 · 01-686-1918 · FSC 3120 Bearings, Plain, Unmounted

Nearby stock numbers ← 3120-01-686-1886 Bearing, Plain, Rod End · 3120-01-686-1921 Bearing, Sleeve →

3120-01-686-1918 — Bearings, Plain, Unmounted

Features

Bushing,sleeve — FSC 3120
Surface Finish: 100.0 MICROINCHES INTERMEDIATE LAYER
Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
Flange Outside Diameter: 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
Body Outside Diameter: 0.3756 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
Style Designator: SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification: QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter: 0.2500 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN

Identification

NSN: 3120-01-686-1918
NIIN: 016861918
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings

General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-01-686-1918, 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10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3120-01-686-1918
Item Name	Bushing,sleeve
FSC / FSG	3120 / 31 — Bearings, Plain, Unmounted
Status	ACTIVE
Surface Finish	100.0 MICROINCHES INTERMEDIATE LAYER
Surface Treatment Document and Classification	QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
Flange Outside Diameter	0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN
Body Outside Diameter	0.3756 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
Style Designator	SOLID, EXTERNAL FLANGE ONE END
Material Document and Classification	QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter	0.2500 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
Surface Treatment	CADMIUM OUTSIDE DIAMETER SURFACE OF BODY
Flange Width	0.0620 INCHES MAXIMUM IN
Material	COPPER ALLOY 642 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

Cross-Reference Index

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

Reference documents

Reference	Meaning
NAS77A4- 025N	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 3120 — Bearings, Plain, Unmounted

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

3120-00-001-1288

3120-00-001-1288 · Item name not on file

3120-00-001-1835

3120-00-001-1835 · Item name not on file

3120-00-001-1838

3120-00-001-1838 · Item name not on file

3120-00-001-1928

3120-00-001-1928 · Item name not on file

3120-00-001-1934

3120-00-001-1934 · Item name not on file

3120-00-001-3933

3120-00-001-3933 · Item name not on file

3120-00-001-3937

3120-00-001-3937 · Item name not on file

3120-00-001-3938

3120-00-001-3938 · Item name not on file

Frequently Asked Questions

What is NSN 3120-01-686-1918?

NSN 3120-01-686-1918 is a Bushing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.

What are the specifications of 3120-01-686-1918?

Key specifications for 3120-01-686-1918: Surface Finish: 100.0 MICROINCHES INTERMEDIATE LAYER; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OUTSIDE DIAMETER SURFACE OF BODY; Flange Outside Diameter: 0.4900 INCHES MINIMUM AND 0.5100 INCHES MAXIMUM IN; Body Outside Diameter: 0.3756 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 3120-01-686-1918 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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