The Bearing,ball,annular, cataloged under National Stock Number 3110-00-620-2797, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-620-2797 |
| Primary Part Number | SB1250-2 |
| 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 | PRESSED |
| Surface Finish | GROUND |
| Style Designator | LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 4.3301 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | ANGULAR |
| Internal Fit-Up Contact Angular Direction | OUTWARD CONVERGENT |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 1.9680 INCHES MINIMUM AND 1.9685 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 |
|---|---|
| SB1250-2 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3110-00-620-2797 is a Bearing,ball,annular, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-620-2797 has 1 manufacturer part number on file: SB1250-2 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for SB1250-2: Retainer Fabrication Method: PRESSED; Surface Finish: GROUND; Style Designator: LOADING GROOVE, NON-SEPARABLE; Overall Width: 1.7450 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN. 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.