The Bearing,sleeve, cataloged under National Stock Number 3120-01-477-7639, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3120-01-477-7639 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 0.5550 INCHES MINIMUM AND 0.5650 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN |
| Flange Width | 0.0440 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM IN |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B7-52 | 3/9 Design control — primary reference W. M. Berg, Inc. |
NSN 3120-01-477-7639 is a Bearing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-01-477-7639: Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 0.5550 INCHES MINIMUM AND 0.5650 INCHES MAXIMUM IN; Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN; Style Designator: SOLID, EXTERNAL FLANGE ONE END. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.