The Bushing,sleeve, cataloged under National Stock Number 3120-01-221-4249, 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10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-221-4249 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Outside Diameter | 0.9383 INCHES MINIMUM AND 0.9393 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.7340 INCHES MINIMUM AND 0.7410 INCHES MAXIMUM IN |
| Specification/standard Data | 80205-NAS537 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 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 |
|---|---|
| NAS537-12P60 | 5/9 Secondary reference U.S. Government activity |
| NAS537-12P600 | 5/9 Secondary reference U.S. Government activity |
| NAS537-12P060 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3120-01-221-4249 is a Bushing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-01-221-4249: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: CHAMFERED INSIDE RIGHT CORNER; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Outside Diameter: 0.9383 INCHES MINIMUM AND 0.9393 INCHES MAXIMUM IN. 10 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.