The Ring,retaining, cataloged under National Stock Number 5325-00-021-1729, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hornet Acquisitionco, Llc Dba Onboard Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5325-00-021-1729 |
| Primary Part Number | 42234D65 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hornet Acquisitionco, Llc Dba Onboard Systems |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Diameter | 0.063 INCHES NOMINAL IN |
| Material Document and Classification | QQ-W-423,COMPOSITION 302 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.180 INCHES NOMINAL IN |
| Inside Diameter | 1.060 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 |
|---|---|
| 42234D65 PRIMARY | Hornet Acquisitionco, Llc Dba Onboard Systems (USA) |
| Reference | Meaning |
|---|---|
| 42234D65 | 5/9 Secondary reference U.S. Government activity |
| 42234D65 | 5/9 Secondary reference Goodrich Corporation Dba Trw Lucas Aerospace |
NSN 5325-00-021-1729 is a Ring,retaining, manufactured by Hornet Acquisitionco, Llc Dba Onboard Systems, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-021-1729 has 1 manufacturer part number on file: 42234D65 (Hornet Acquisitionco, Llc Dba Onboard Systems).
Key specifications for 42234D65: Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Diameter: 0.063 INCHES NOMINAL IN; Material Document and Classification: QQ-W-423,COMPOSITION 302 FED SPEC SINGLE MATERIAL RESPONSE. 11 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.