The Ring,retaining, cataloged under National Stock Number 5325-00-558-9550, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-558-9550 |
| Primary Part Number | 137265P010W |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | AMS 7310 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUNDED CORNERS |
| Outside Diameter | 5.120 INCHES NOMINAL IN |
| Major Thickness | 0.090 INCHES NOMINAL IN |
| Inside Diameter | 4.890 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | IRON CAST |
| 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 |
|---|---|
| 137265P010W PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
NSN 5325-00-558-9550 is a Ring,retaining, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-558-9550 has 1 manufacturer part number on file: 137265P010W (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for 137265P010W: Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Document and Classification: AMS 7310 ASSN STD 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.