The Bearing,ball,annular, cataloged under National Stock Number 3110-01-643-6640, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-643-6640 |
| Primary Part Number | IR2916/BH3316D4 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| IR2916/BH3316D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7550479-7108102-178D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| 7108102-178D4 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 7550479-7108102-178 | 5/1 Secondary reference Naval Sea Systems Command |
| 7108102-178 | 3/1 Design control — primary reference U.S. Government activity |
| IR2916/BH3316 | 5/1 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-01-643-6640 is a Bearing,ball,annular, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-643-6640 has 3 manufacturer part numbers on file: IR2916/BH3316D4 (Naval Inventory Control Point Mechanicsburg), 7550479-7108102-178D4 (Naval Inventory Control Point Mechanicsburg), 7108102-178D4 (Naval Inventory Control Point Mechanicsburg).
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.