The Bearing,sleeve, cataloged under National Stock Number 3120-01-007-4105, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Mayday Manufacturing Co.. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-007-4105 |
| Primary Part Number | 47-641-175-1 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Mayday Manufacturing Co. |
| Status | ACTIVE |
| Surface Finish | 8.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Body Outside Diameter | 0.7495 INCHES MINIMUM AND 0.7505 INCHES MAXIMUM IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM OVERALL |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OUTSIDE DIAMETER SURFACE OF BODY |
| Material | STEEL COMP 440C OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 47-641-175-1 PRIMARY | Mayday Manufacturing Co. (USA) |
| Reference | Meaning |
|---|---|
| 47-641-175-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3120-01-007-4105 is a Bearing,sleeve, manufactured by Mayday Manufacturing Co., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-007-4105 has 1 manufacturer part number on file: 47-641-175-1 (Mayday Manufacturing Co.).
Key specifications for 47-641-175-1: Surface Finish: 8.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: CHAMFERED INSIDE LEFT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: CHAMFERED INSIDE RIGHT CORNER. 12 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.