The Ring,retaining, cataloged under National Stock Number 5325-01-154-3542, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Asi Design & Manufacturing, Inc. Dba a S I. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-154-3542 |
| Primary Part Number | 433R121H01 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Asi Design & Manufacturing, Inc. Dba a S I |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.808 INCHES NOMINAL IN |
| Major Thickness | 0.033 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL INVERTED LUGS |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 433R121H01 PRIMARY | Asi Design & Manufacturing, Inc. Dba a S I (USA) |
| Reference | Meaning |
|---|---|
| 433R121H01 | 5/2 Secondary reference U.S. Government activity |
NSN 5325-01-154-3542 is a Ring,retaining, manufactured by Asi Design & Manufacturing, Inc. Dba a S I, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-154-3542 has 1 manufacturer part number on file: 433R121H01 (Asi Design & Manufacturing, Inc. Dba a S I).
Key specifications for 433R121H01: Usage Design: INTERNAL; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.808 INCHES NOMINAL IN. 9 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.