The Ring,retaining, cataloged under National Stock Number 5325-01-631-0004, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-631-0004 |
| Primary Part Number | 12018A7005 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
| Status | ACTIVE |
| Material Diameter | 0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Supplementary Features | MATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580 |
| Material Document and Classification | ASTM A313, TYPE 302 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.0 INCHES MINIMUM AND 1.5 INCHES MAXIMUM IN |
| Inside Diameter | 0.75 INCHES MINIMUM AND 1.25 INCHES MAXIMUM IN |
| Ring Style | SPIRAL ROUND |
| Material | STEEL COMP 302 OR 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 |
|---|---|
| 12018A7005 PRIMARY | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA) |
NSN 5325-01-631-0004 is a Ring,retaining, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-631-0004 has 1 manufacturer part number on file: 12018A7005 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).
Key specifications for 12018A7005: Material Diameter: 0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Supplementary Features: MATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580; Material Document and Classification: ASTM A313, TYPE 302 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 8 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.