The Ring,retaining, cataloged under National Stock Number 5325-01-729-4635, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | L3 Technologies, Inc. (CAGE 28199) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-729-4635 |
| Primary Part Number | C-4508 TYPE 2 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | L3 Technologies, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| C-4508 TYPE 2 PRIMARY | L3 Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10-4020-1/PG 1 | D/9 Drawing number reference only L3 Technologies, Inc. |
| 10-4020-1 ITEM 28 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. |
NSN 5325-01-729-4635 is a Ring,retaining, manufactured by L3 Technologies, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-729-4635 has 1 manufacturer part number on file: C-4508 TYPE 2 (L3 Technologies, Inc.).
7 possible matches (shared part number, not a government interchangeability claim): 4020-01-729-4636, 5330-01-729-4637, 4730-01-729-4639. Verify interchangeability with system specifications before substitution.
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.