The Ring,retaining, cataloged under National Stock Number 5325-00-753-3929, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-753-3929 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Nondefinitive Spec/std Data | 1 TYPE AND 2 CLASS |
| Major Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Inside Diameter | 0.390 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | PHOSPHATE |
| Material | STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MILR21248 | 5/9 Secondary reference U.S. Government activity |
| 5100-43PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 3100-43-ST-PA | 5/9 Secondary reference U.S. Government activity |
| NAS670-43P | 5/9 Secondary reference U.S. Government activity |
| MS16624-3043 | 2/2 Government specification standardization U.S. Government activity |
| 5100-43-S-PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| MS16624-3043 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-21248 | 4/1 Identification reference U.S. Government activity |
NSN 5325-00-753-3929 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-753-3929: Material Hardness Rating: 69.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 73.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.