The Bearing,ball,annular, cataloged under National Stock Number 3110-00-620-2798, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-620-2798 |
| Primary Part Number | SB1250-1 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Surface Finish | GROUND |
| Bore Shape | STRAIGHT |
| Load Direction | ANGULAR |
| Internal Fit-Up Contact Angular Direction | INWARD CONVERGENT |
| Standard Tolerance Designation | ABEC NO.1 |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL BALL |
| 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 |
|---|---|
| 5310A21E100B014C82S9173AR | Skf Usa Inc. (USA) |
| SB1250-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3110-00-620-2798 is a Bearing,ball,annular, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-620-2798 has 2 manufacturer part numbers on file: 5310A21E100B014C82S9173AR (Skf Usa Inc.), SB1250-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SB1250-1: Retainer Fabrication Method: MACHINED; Surface Finish: GROUND; Bore Shape: STRAIGHT; Load Direction: ANGULAR. 10 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.