The Bearing,sleeve, cataloged under National Stock Number 3120-01-233-2991, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-233-2991 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OVERALL |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 2.2500 INCHES NOMINAL IN |
| Body Outside Diameter | 1.5000 INCHES NOMINAL IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | MIL-B-16261 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 1.0000 INCHES MINIMUM AND 1.0010 INCHES MAXIMUM IN |
| Lubricant Accommodation Style | GROOVED CIRCULAR |
| Flange Width | 0.1180 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 938 OVERALL |
| Surface Groove Location and Quantity | 4 INTERNAL |
| 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 |
|---|---|
| SSN612-520-1945957 PIECE 15 | 3/2 Design control — primary reference U.S. Government activity |
| SSN593-520-1862106 PIECE 15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-233-2991 is a Bearing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-01-233-2991: Surface Finish: 63.0 MICROINCHES OVERALL; Corner Shape: SQUARE ALL CORNERS; Flange Outside Diameter: 2.2500 INCHES NOMINAL IN; Body Outside Diameter: 1.5000 INCHES NOMINAL IN. 11 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.