The O-Ring, cataloged under National Stock Number 5331-01-163-4973, 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 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Technamm (CAGE FAR29); Hellgeth Engineering Spezialfahrzeugbau Gmbh (CAGE CJ802); Amz Alabama Inc. (CAGE 076M6); Hagglunds Vehicle Gmbh (CAGE C8716); Bae Systems Hagglunds Aktiebolag (CAGE AC90N) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-163-4973 |
| Primary Part Number | 90775-991 |
| 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 |
|---|---|
| HE010116 | Technamm (FRA) |
| 010116 | Hellgeth Engineering Spezialfahrzeugbau Gmbh (DEU) |
| 90775-991 PRIMARY | Amz Alabama Inc. (USA) |
| 2152 2115-708 | Amz Alabama Inc. (USA) |
| 2152 2115-708 | Hagglunds Vehicle Gmbh (DEU) |
| 2152 2115-708 | Bae Systems Hagglunds Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| 2152 2115-708 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 90775-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 451-0980 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-163-4973 is a O-Ring, manufactured by Amz Alabama Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-163-4973 has 6 manufacturer part numbers on file: HE010116 (Technamm), 010116 (Hellgeth Engineering Spezialfahrzeugbau Gmbh), 90775-991 (Amz Alabama Inc.), 2152 2115-708 (Amz Alabama Inc.), 2152 2115-708 (Hagglunds Vehicle Gmbh) and 1 more.
2 possible matches (shared part number, not a government interchangeability claim): 6605-01-376-9028, 5340-01-394-3912. Verify interchangeability with system specifications before substitution.
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.