The Bearing,ball,annular, cataloged under National Stock Number 3110-00-445-9970, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-445-9970 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Lubrication Material | GREASE |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Style Designator | SHOULDERED INNER RING, SEPARABLE |
| Overall Outside Diameter | 0.4898 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Internal Fit-Up Contact Angular Direction | PRIMARILY RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 0.2507 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | PLASTIC PHENOLIC RETAINER |
| Material | STEEL BALL |
| Lubrication Material Document and Classification | UNITEMP 500,FSCM 59595 MFR REF SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| QR3B744003-1 | C/1 Advisory reference — outside the item-of-supply concept General Motors Corp Delco Moraine Ndh Div |
| 744003-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems |
| 744003-1 | 3/2 Design control — primary reference U.S. Government activity |
| PR3B0RAFG18PB12-16CMM | 5/9 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| R3B0RAG2ABEC5-74 | C/1 Advisory reference — outside the item-of-supply concept Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| R3B0RAG2ABEC5-744003-1 | 5/9 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
NSN 3110-00-445-9970 is a Bearing,ball,annular, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-00-445-9970: Retainer Fabrication Method: MACHINED; Lubrication Material: GREASE; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND. 15 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.