The Ring,retaining, cataloged under National Stock Number 5325-01-674-4528, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-674-4528 |
| Primary Part Number | 97431A250 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Material Hardness Rating | 47.0 ROCKWELL C NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.203 INCHES NOMINAL IN |
| Major Thickness | 0.015 INCHES NOMINAL IN |
| Inside Diameter | 0.100 INCHES NOMINAL IN |
| Ring Style | E |
| Surface Treatment | PHOSPHATE |
| Material | 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 |
|---|---|
| 97431A250 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| INFRA-210012 | 3/9 Design control — primary reference Infrascan Inc |
| 9731A250 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 5325-01-674-4528 is a Ring,retaining, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-674-4528 has 1 manufacturer part number on file: 97431A250 (Mcmaster-Carr Supply Co).
Key specifications for 97431A250: Material Hardness Rating: 47.0 ROCKWELL C NOMINAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.203 INCHES NOMINAL IN; Major Thickness: 0.015 INCHES NOMINAL IN. 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.