The Bearing,ball,annular, cataloged under National Stock Number 3110-00-640-8957, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is General Motors Llc Dba General Motors Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-640-8957 |
| Primary Part Number | RS77R4DLR5279C12 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 0.6248 INCHES MINIMUM AND 0.6249 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 0.2499 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | STEEL 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 |
|---|---|
| RS77R4DLR5279C12 | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| RS77R4DZF5890C12MILL6085A | 5/9 Secondary reference General Motors Corp |
| RS77R4DZF5890C12MILL6085A | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| RS77R4DLR5279C12 | 5/9 Secondary reference General Motors Corp |
| RS77R4DLR5279C12 | 3/9 Design control — primary reference General Motors Corp Delco Moraine Ndh Div |
NSN 3110-00-640-8957 is a Bearing,ball,annular, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-640-8957 has 1 manufacturer part number on file: RS77R4DLR5279C12 (General Motors Llc Dba General Motors Llc).
Key specifications for RS77R4DLR5279C12: Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Overall Width: 0.1910 INCHES MINIMUM AND 0.1960 INCHES MAXIMUM IN; Overall Outside Diameter: 0.6248 INCHES MINIMUM AND 0.6249 INCHES MAXIMUM IN. 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.