The O-Ring, cataloged under National Stock Number 5331-01-172-4645, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Amz Alabama Inc.. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Amz Alabama Inc. (CAGE 076M6); Daimler Truck North America Llc (CAGE 64678) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-172-4645 |
| Primary Part Number | 93640-991 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 93640-991 PRIMARY | Amz Alabama Inc. (USA) |
| 6369970244 PRIMARY | Daimler Truck North America Llc (USA) |
| Reference | Meaning |
|---|---|
| 4537800-772 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 6369970244 | 5/9 Secondary reference Daimler Ag |
| 93640-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
NSN 5331-01-172-4645 is a O-Ring, manufactured by Amz Alabama Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-172-4645 has 2 manufacturer part numbers on file: 93640-991 (Amz Alabama Inc.), 6369970244 (Daimler Truck North America Llc).
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.