The Ring,retaining, cataloged under National Stock Number 5325-01-187-0490, 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 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-187-0490 |
| Primary Part Number | 11609158 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| End Style | VERTEX BELOW CENTER |
| Material Diameter | 0.125 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/8, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | ANGULAR CAP |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 11609158 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| AS5174-1616 | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc (USA) |
NSN 5325-01-187-0490 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-187-0490 has 2 manufacturer part numbers on file: 11609158 (U S Army Tank Automotive Command Amsta-Im-Mm), AS5174-1616 (B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc).
Key specifications for 11609158: End Style: VERTEX BELOW CENTER; Material Diameter: 0.125 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/8, T6 FED SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 9 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.