The Ring,retaining, cataloged under National Stock Number 5325-01-509-2811, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Slidell Marine Inc. Government technical data includes 4 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 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 | 5325-01-509-2811 |
| Primary Part Number | 94540-12029 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Slidell Marine Inc |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Inside Diameter | 12.0 MILLIMETERS NOMINAL MM |
| Ring Style | E |
| Material | STEEL |
| 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 |
|---|---|
| 94540-12029 PRIMARY | Slidell Marine Inc (USA) |
NSN 5325-01-509-2811 is a Ring,retaining, manufactured by Slidell Marine Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-509-2811 has 1 manufacturer part number on file: 94540-12029 (Slidell Marine Inc).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-605-2901. Verify interchangeability with system specifications before substitution.
Key specifications for 94540-12029: Usage Design: EXTERNAL; Inside Diameter: 12.0 MILLIMETERS NOMINAL MM; Ring Style: E; End Item Identification: ENGINE. 4 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.