The Ring,retaining, cataloged under National Stock Number 5325-00-288-2999, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-288-2999 |
| Primary Part Number | 4904073 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 1.070 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN |
| Major Thickness | 0.120 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Surface Treatment | NICKEL |
| 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 |
|---|---|
| 4904073 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 588.51-100012-004 | Diehl Defence Gmbh & Co. Kg (DEU) |
NSN 5325-00-288-2999 is a Ring,retaining, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-288-2999 has 2 manufacturer part numbers on file: 4904073 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 588.51-100012-004 (Diehl Defence Gmbh & Co. Kg).
Key specifications for 4904073: Usage Design: EXTERNAL; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 1.070 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN; Major Thickness: 0.120 INCHES NOMINAL IN. 8 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.