The Ring,retaining, cataloged under National Stock Number 5325-00-004-3662, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-004-3662 |
| Primary Part Number | 404708 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Material Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Document and Classification | AMS 5643, 17-4PH ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.891 INCHES NOMINAL IN |
| Major Thickness | 0.134 INCHES NOMINAL IN |
| Inside Diameter | 1.632 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 630 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-00-004-3662 is a Ring,retaining, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-004-3662 has 2 manufacturer part numbers on file: 404708 (Raytheon Company Dba Raytheon Co), 404708 (Raytheon Company).
1 possible match (shared part number, not a government interchangeability claim): 4730-00-397-5621. Verify interchangeability with system specifications before substitution.
Key specifications for 404708: Material Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Document and Classification: AMS 5643, 17-4PH ASSN STD SINGLE MATERIAL RESPONSE. 10 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.