The Ring,retaining, cataloged under National Stock Number 5325-01-327-5089, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Woodward Fst, Inc. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-327-5089 |
| Primary Part Number | 513P631-01 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Woodward Fst, Inc |
| Status | ACTIVE |
| Usage Design | EXTERNAL AND INTERNAL |
| Material Diameter | 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Inside Diameter | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| Material | STEEL COMP 631 |
| 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 |
|---|---|
| 513P631-01 PRIMARY | Woodward Fst, Inc (USA) |
NSN 5325-01-327-5089 is a Ring,retaining, manufactured by Woodward Fst, Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-327-5089 has 1 manufacturer part number on file: 513P631-01 (Woodward Fst, Inc).
Key specifications for 513P631-01: Usage Design: EXTERNAL AND INTERNAL; Material Diameter: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Material Document and Classification: AMS 5678 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 9 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.