The Ring,retaining, cataloged under National Stock Number 5325-01-291-8175, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-291-8175 |
| Primary Part Number | 12364282 |
| 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 | 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1064 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1065 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1070 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 6TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 2.673 INCHES MINIMUM AND 2.753 INCHES MAXIMUM IN |
| Major Thickness | 0.076 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOK TAPER |
| Material | STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 |
| 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 |
|---|---|
| 12364282 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| SK12364282 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 1N250 PRIMARY | Llc Ring Masters (USA) |
| Reference | Meaning |
|---|---|
| 1N250 | 5/9 Secondary reference Tinnerman Palnut Engineered Products, Inc. |
NSN 5325-01-291-8175 is a Ring,retaining, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-291-8175 has 3 manufacturer part numbers on file: 12364282 (U S Army Tank Automotive Command Amsta-Im-Mm), SK12364282 (U S Army Tank Automotive Command Amsta-Im-Mm), 1N250 (Llc Ring Masters).
Key specifications for 12364282: Material Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1064 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1065 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1070 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 6TH MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.