The Ring,retaining, cataloged under National Stock Number 5325-00-905-4445, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-905-4445 |
| Primary Part Number | 8356270 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Material Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | VERTEX OUTSIDE PERIPHERY |
| Strength Rating | ERR-060 |
| Material Document and Classification | FED STD NO. 66,AISI C1060 THRU C1095 OR SAE 1060 THRU 1095 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.525 INCHES NOMINAL IN |
| Major Thickness | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Inside Diameter | 1.301 INCHES MINIMUM AND 1.321 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL |
| 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 |
|---|---|
| 8356270 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5325-00-905-4445 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-905-4445 has 1 manufacturer part number on file: 8356270 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8356270: Material Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: VERTEX OUTSIDE PERIPHERY; Strength Rating: ERR-060. 12 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.