The Ring,retaining, cataloged under National Stock Number 5325-01-202-3643, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-202-3643 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Surface Treatment Document and Classification | MIL-C-26074 MIL SPEC SINGLE TREATMENT RESPONSE |
| End Style | 90 DEGREE PARALLEL |
| Material Diameter | 0.0359 INCHES NOMINAL IN |
| Material Document and Classification | SAE 81 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B159,ALLOY 510 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.512 INCHES NOMINAL IN |
| Inside Diameter | 0.440 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | NICKEL |
| Material | COPPER ALLOY 510 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A4269 | 5/9 Secondary reference The Electric Tachometer Corp. |
| A4269 | C/1 Advisory reference — outside the item-of-supply concept Dynalec Corporation |
| 4LC6 | C/1 Advisory reference — outside the item-of-supply concept Dynalec Corporation |
| 4LC6 | 3/9 Design control — primary reference The Electric Tachometer Corp. |
NSN 5325-01-202-3643 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-202-3643: Usage Design: EXTERNAL; Surface Treatment Document and Classification: MIL-C-26074 MIL SPEC SINGLE TREATMENT RESPONSE; End Style: 90 DEGREE PARALLEL; Material Diameter: 0.0359 INCHES NOMINAL IN. 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.