The Bearing,ball,annular, cataloged under National Stock Number 3110-01-570-2733, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is United Instruments Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-570-2733 |
| Primary Part Number | 2839-900020 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | United Instruments Inc. |
| Status | ACTIVE |
| Bore Shape | STRAIGHT |
| 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 |
|---|---|
| 2839-900020 PRIMARY | United Instruments Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2839-900020 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3110-01-570-2733 is a Bearing,ball,annular, manufactured by United Instruments Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-570-2733 has 1 manufacturer part number on file: 2839-900020 (United Instruments Inc.).
Key specifications for 2839-900020: Bore Shape: STRAIGHT; Special Features: NHA RATE-OF-TURN SENSOR, PART NUMBER 772-5140-002 (345A-7) T.O. 12R5-4-129-11. A; Part Name Assigned by Controlling Agency: BALL BEARING; End Item Identification: B-1B LANCER BOMBER AIRCRAFT. 2 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.