The Ring,retaining, cataloged under National Stock Number 5325-01-053-1659, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-053-1659 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 39.8 ROCKWELL C MINIMUM AND 48.5 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Strength Rating | ERR-060 |
| Material Document and Classification | SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 1.869 INCHES MINIMUM AND 1.889 INCHES MAXIMUM IN |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Inside Diameter | 1.613 INCHES MINIMUM AND 1.633 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
| M2742620127D | 2/2 Government specification standardization U.S. Government activity |
| RSN-175S | 5/1 Secondary reference U.S. Government activity |
NSN 5325-01-053-1659 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-053-1659: Material Hardness Rating: 39.8 ROCKWELL C MINIMUM AND 48.5 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Strength Rating: ERR-060; Material Document and Classification: SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE. 12 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.