The Bearing,sleeve, cataloged under National Stock Number 3120-01-031-8353, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3120-01-031-8353 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Status | ACTIVE |
| Left Internal Flange Width | 0.0600 INCHES NOMINAL IN |
| Surface Finish | 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE |
| Surface Finish | 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 63.0 MICROINCHES LEFT END SURFACE OF RIGHT FLANGE |
| Left Internal Flange Hole Diameter | 0.2550 INCHES MINIMUM AND 0.2570 INCHES MAXIMUM IN |
| Corner Shape | SQUARE ALL CORNERS |
| Right Internal Flange Width | 0.2030 INCHES NOMINAL IN |
| Right Flange Width | 0.0500 INCHES NOMINAL IN |
| Body Outside Diameter | 0.5030 INCHES MINIMUM AND 0.5070 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZW |
| Style Designator | SOLID, EXTERNAL FLANGES BOTH ENDS, INTERNAL FLANGE AT BOTH ENDS |
| Body Inside Diameter | 0.3700 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN |
| Right Flange Outside Diameter | 0.6180 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN |
| Departure From Cited Document | AS MODIFIED BY SPECIAL QUALITY CONTROL TESTING FOR MK 48 TORPEDO |
| Right Internal Flange Hole Diameter | 0.2550 INCHES MINIMUM AND 0.2570 INCHES MAXIMUM IN |
| Left Flange Outside Diameter | 0.6180 INCHES MINIMUM AND 0.6200 INCHES MAXIMUM IN |
| Left Flange Width | 0.1930 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 2505394 | 3/1 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3120-01-031-8353 is a Bearing,sleeve, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
Key specifications for 3120-01-031-8353: Left Internal Flange Width: 0.0600 INCHES NOMINAL IN; Surface Finish: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE; Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 63.0 MICROINCHES LEFT END SURFACE OF RIGHT FLANGE. 19 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.