The Ring,retaining, cataloged under National Stock Number 5325-00-598-4289, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5325-00-598-4289 |
| Primary Part Number | 011661 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Woodward, Inc. |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | VERTEX CENTER OR ABOVE |
| Material Document and Classification | JAN-S-1160 GRADE 2,TYPE B,MATERIAL 5 MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUNDED CORNERS |
| Outside Diameter | 0.419 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Major Thickness | 0.045 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN |
| Inside Diameter | 0.327 INCHES MINIMUM AND 0.347 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| 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 |
|---|---|
| 011661 PRIMARY | Woodward, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 011661 | 5/9 Secondary reference Woodward, Inc. Div Fuel Systems and Controls |
| 011661 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5325-00-598-4289 is a Ring,retaining, manufactured by Woodward, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-598-4289 has 1 manufacturer part number on file: 011661 (Woodward, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-092-4001. Verify interchangeability with system specifications before substitution.
Key specifications for 011661: Usage Design: EXTERNAL; End Style: VERTEX CENTER OR ABOVE; Material Document and Classification: JAN-S-1160 GRADE 2,TYPE B,MATERIAL 5 MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUNDED CORNERS. 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.