The Ring,retaining, cataloged under National Stock Number 5325-01-022-7055, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5325-01-022-7055 |
| Primary Part Number | 7710381 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Document and Classification | MIL-S-13048, COMP 4140-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 3.125 INCHES NOMINAL IN |
| Inside Diameter | 14.906 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Material | STEEL COMP 4140 |
| 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 |
|---|---|
| 7710381 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5325010227055 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5325-01-022-7055 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-022-7055 has 1 manufacturer part number on file: 7710381 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-286-6067. Verify interchangeability with system specifications before substitution.
Key specifications for 7710381: Usage Design: EXTERNAL; Material Document and Classification: MIL-S-13048, COMP 4140-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 3.125 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
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.