The Ring,retaining, cataloged under National Stock Number 5325-00-579-8288, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. Government technical data includes 8 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-579-8288 |
| Primary Part Number | 402021 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Diameter | 0.050 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.350 INCHES NOMINAL IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOKED |
| 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 |
|---|---|
| 402021 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5325-00-579-8288 is a Ring,retaining, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-579-8288 has 1 manufacturer part number on file: 402021 (Woodward, Inc. Div Fuel Systems and Controls).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-034-9967, 6645-01-128-7866. Verify interchangeability with system specifications before substitution.
Key specifications for 402021: Usage Design: EXTERNAL; Material Diameter: 0.050 INCHES NOMINAL IN; Cross-Sectional Shape Style: ROUND; Outside Diameter: 0.350 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.