The O-Ring, cataloged under National Stock Number 5331-01-166-5939, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Daimler Truck North America Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Daimler Truck North America Llc (CAGE 64678); Bae Systems Hagglunds Aktiebolag (CAGE AC90N); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-166-5939 |
| Primary Part Number | 0039975848 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Daimler Truck North America Llc |
| 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 |
|---|---|
| 0039975848 PRIMARY | Daimler Truck North America Llc (USA) |
| 4537800-652 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 93564-991 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 93564-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 4537800-652 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 0039975848 | 5/9 Secondary reference Daimler Ag |
NSN 5331-01-166-5939 is a O-Ring, manufactured by Daimler Truck North America Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-166-5939 has 3 manufacturer part numbers on file: 0039975848 (Daimler Truck North America Llc), 4537800-652 (Bae Systems Hagglunds Aktiebolag), 93564-991 (Amz Alabama Inc.).
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.