The Ring,retaining, cataloged under National Stock Number 5325-00-905-9183, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Deutsch Co the. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-905-9183 |
| Primary Part Number | D3021C0 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Deutsch Co the |
| Status | ACTIVE |
| Material Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | SAE,J405,COMP 30302 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.255 INCHES NOMINAL IN |
| Major Thickness | 0.015 INCHES NOMINAL IN |
| Inside Diameter | 0.205 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 |
| 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 |
|---|---|
| D3021C0 PRIMARY | Deutsch Co the (USA) |
| Reference | Meaning |
|---|---|
| 70B400009-2023 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 582R201H08 | 3/2 Design control — primary reference U.S. Government activity |
| TRC814CRES | 5/9 Secondary reference Mellowes Co Div of Charter Mfg Co Inc |
NSN 5325-00-905-9183 is a Ring,retaining, manufactured by Deutsch Co the, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-905-9183 has 1 manufacturer part number on file: D3021C0 (Deutsch Co the).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-619-3416. Verify interchangeability with system specifications before substitution.
Key specifications for D3021C0: Material Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Document and Classification: SAE,J405,COMP 30302 ASSN STD SINGLE MATERIAL RESPONSE. 12 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.