The Ring,retaining, cataloged under National Stock Number 5325-01-027-1976, 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 10 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 | 5325-01-027-1976 |
| Primary Part Number | 218686 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Diameter | 0.032 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.360 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN |
| Inside Diameter | 0.290 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | PASSIVATE |
| 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 |
|---|---|
| 218686 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5325-01-027-1976 is a Ring,retaining, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-027-1976 has 1 manufacturer part number on file: 218686 (Woodward, Inc. Div Fuel Systems and Controls).
1 possible match (shared part number, not a government interchangeability claim): 2950-01-689-5279. Verify interchangeability with system specifications before substitution.
Key specifications for 218686: Usage Design: EXTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Diameter: 0.032 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Cross-Sectional Shape Style: ROUND. 10 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.