The Ring,retaining, cataloged under National Stock Number 5325-00-447-3189, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5325-00-447-3189 |
| Primary Part Number | 7411340 |
| 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 | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| End Style | VERTEX BELOW CENTER |
| Material Document and Classification | ASTM A576 COMP 1060 TO COMP 1070 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 3.312 INCHES NOMINAL IN |
| End Play Takeup | 0.188 INCHES NOMINAL IN |
| Major Thickness | 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Inside Diameter | 2.938 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| 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 |
|---|---|
| 7411340 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 590484 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| 590484 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 590484 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 590484 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 5325-00-447-3189 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-447-3189 has 3 manufacturer part numbers on file: 7411340 (U S Army Tank Automotive Command Amsta-Im-Mm), 590484 (General Motors Llc Dba General Motors Llc), 590484 (General Motors Corp).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-443-9725. Verify interchangeability with system specifications before substitution.
Key specifications for 7411340: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; End Style: VERTEX BELOW CENTER; Material Document and Classification: ASTM A576 COMP 1060 TO COMP 1070 ASSN STD SINGLE MATERIAL RESPONSE. 11 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.