The Ring,retaining, cataloged under National Stock Number 5325-01-168-4180, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Amz Alabama Inc.. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Technamm (CAGE FAR29); Hellgeth Engineering Spezialfahrzeugbau Gmbh (CAGE CJ802); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-168-4180 |
| Primary Part Number | 21674124-500 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| 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) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| HE010271 | Technamm (FRA) |
| 010271 | Hellgeth Engineering Spezialfahrzeugbau Gmbh (DEU) |
| 21674124-500 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 445-9906 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 90910-991 | 3/9 Design control — primary reference U.s. Defense Services, Inc. Dba Usds |
| 90910-991 | 5/9 Secondary reference Amz Alabama Inc. |
| 21674124-500 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
| 21674124-500 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
NSN 5325-01-168-4180 is a Ring,retaining, manufactured by Amz Alabama Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-168-4180 has 3 manufacturer part numbers on file: HE010271 (Technamm), 010271 (Hellgeth Engineering Spezialfahrzeugbau Gmbh), 21674124-500 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5345-01-444-7713. 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.