The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-140-0670, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-140-0670 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Bearing Preload Rating | 17.5 POUNDS NOMINAL LBS |
| Surface Finish | UNGROUND |
| Shield Quantity | 2 |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Overall Outside Diameter | 1.3123 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| Load Direction | ANGULAR |
| Standard Tolerance Designation | ABEC NO. 7T |
| Bore Diameter | 1.0623 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN |
| Material | GREASE LUBRICATION |
| Material | STEEL CORROSION RESISTING OVERALL |
| Lubrication Material Document and Classification | MIL-G-81937 MIL SPEC 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 |
|---|---|
| SR1742PTC4K58-1A7-420 | 3/2 Design control — primary reference U.S. Government activity |
| SR1742PTC4K58-1A | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3110-01-140-0670 is a Bearing,ball,duplex, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-140-0670: Bearing Preload Rating: 17.5 POUNDS NOMINAL LBS; Surface Finish: UNGROUND; Shield Quantity: 2; Style Designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. 11 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.