The Ring,retaining, cataloged under National Stock Number 5325-01-157-8803, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-157-8803 |
| Primary Part Number | BS3673B028M |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Material Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | CHAMFERED OUTSIDE CORNERS |
| Major Thickness | 0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN |
| Ring Style | INTERNAL |
| 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 |
|---|---|
| BS3673B028M | Bsi Standards Limited (GBR) |
| AGS2030-34 | Rolls-Royce Plc Div Defense (europe) (GBR) |
| Reference | Meaning |
|---|---|
| AGS2030-34 | 3/9 Design control — primary reference Bsi Standards Limited |
NSN 5325-01-157-8803 is a Ring,retaining, manufactured by Bsi Standards Limited, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-157-8803 has 2 manufacturer part numbers on file: BS3673B028M (Bsi Standards Limited), AGS2030-34 (Rolls-Royce Plc Div Defense (europe)).
Key specifications for BS3673B028M: Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: CHAMFERED OUTSIDE CORNERS; Major Thickness: 0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN; Ring Style: INTERNAL. 6 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.