The Ring,retaining, cataloged under National Stock Number 5325-00-741-1664, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-741-1664 |
| Primary Part Number | 7411664 |
| 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 | EXTERNAL |
| End Style | VERTEX OUTSIDE PERIPHERY |
| Material Document and Classification | QQ-S-633A, FS C1060 TO FS C1070 FED SPEC SINGLE MATERIAL RESPONSE A |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 2.593 INCHES NOMINAL IN |
| Major Thickness | 0.094 INCHES NOMINAL IN |
| Inside Diameter | 2.219 INCHES NOMINAL 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 |
|---|---|
| 7411664 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 8613630 | General Motors Corp (USA) |
| 8613630 | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 8613630 | 5/9 Secondary reference Hydramatic Div of General Motors Corp |
| 8613630 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 5325-00-741-1664 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-741-1664 has 3 manufacturer part numbers on file: 7411664 (U S Army Tank Automotive Command Amsta-Im-Mm), 8613630 (General Motors Corp), 8613630 (General Motors Llc Dba General Motors Llc).
Key specifications for 7411664: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: VERTEX OUTSIDE PERIPHERY; Material Document and Classification: QQ-S-633A, FS C1060 TO FS C1070 FED SPEC SINGLE MATERIAL RESPONSE A. 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.