The Ring,retaining, cataloged under National Stock Number 5325-01-017-8570, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-017-8570 |
| Primary Part Number | 2533400-0004A |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Document and Classification | QQ-S-763, CLASS 302 ANNEALED FED SPEC SINGLE MATERIAL RESPONSE OR ASTM-A167, TYPE 302, ANNEALED ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.486 INCHES NOMINAL IN |
| Major Thickness | 0.037 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Inside Diameter | 0.315 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 2533400-0004A | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2533400-0004A | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5325-01-017-8570 is a Ring,retaining, manufactured by Naval Sea Systems Command, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-017-8570 has 1 manufacturer part number on file: 2533400-0004A (Naval Sea Systems Command).
Key specifications for 2533400-0004A: Usage Design: EXTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Document and Classification: QQ-S-763, CLASS 302 ANNEALED FED SPEC SINGLE MATERIAL RESPONSE OR ASTM-A167, TYPE 302, ANNEALED ASSN 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.