Bearing, Plain, Spherical3120-00-902-5889

NSN 3120-00-902-5889 · NIIN 009025889

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

Government record, cited

Also searched as 3120-00-902-5889 · 3120009025889 · NIIN 009025889 · 00-902-5889 · FSC 3120 Bearings, Plain, Unmounted

Nearby stock numbers ← 3120-00-902-5820 · 3120-00-902-6505 Bearing Half, Sleeve →

3120-00-902-5889 — Bearings, Plain, Unmounted

Features

Bearing,plain,spherical — FSC 3120
Surface Finish: 63.0 MICROINCHES SPHERICAL SURFACE
Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Corner Shape: SQUARE INSIDE RIGHT CORNER
Corner Shape: SQUARE INSIDE LEFT CORNER
Style Designator: SEGMENTED
Body Inside Diameter: 4.0060 INCHES MINIMUM AND 4.0070 INCHES MAXIMUM IN
Material: TIN ALLOY INNER LAYER

Identification

NSN: 3120-00-902-5889
NIIN: 009025889
FSC: 3120 — Bearings, Plain, Unmounted
FSG: 31 — Bearings

General Description

The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-902-5889, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	3120-00-902-5889
Item Name	Bearing,plain,spherical
FSC / FSG	3120 / 31 — Bearings, Plain, Unmounted
Status	ACTIVE
Surface Finish	63.0 MICROINCHES SPHERICAL SURFACE
Surface Finish	32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Corner Shape	SQUARE INSIDE RIGHT CORNER
Corner Shape	SQUARE INSIDE LEFT CORNER
Style Designator	SEGMENTED
Body Inside Diameter	4.0060 INCHES MINIMUM AND 4.0070 INCHES MAXIMUM IN
Material	TIN ALLOY INNER LAYER
Material	STEEL OUTER LAYER
Spherical Body Diameter	6.2495 INCHES MINIMUM AND 6.2500 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
509E205CA1	3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept

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 3120-00-902-5889?

NSN 3120-00-902-5889 is a Bearing,plain,spherical, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.

What are the specifications of 3120-00-902-5889?

Key specifications for 3120-00-902-5889: Surface Finish: 63.0 MICROINCHES SPHERICAL SURFACE; Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER. 9 specifications are documented in the U.S. Government catalog.

Is NSN 3120-00-902-5889 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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