The Ring,retaining, cataloged under National Stock Number 5325-01-537-9180, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 7 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 | 5325-01-537-9180 |
| Primary Part Number | G202555-1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Minor Thickness | 0.473 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | GROOVED INSIDE CORNER |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Major Thickness | 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Inside Diameter | 1.690 INCHES NOMINAL IN |
| Ring Style | STRAIGHT GAP |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| G202555-1 PRIMARY | Raytheon Company Div Corp (USA) |
NSN 5325-01-537-9180 is a Ring,retaining, manufactured by Raytheon Company Div Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-537-9180 has 1 manufacturer part number on file: G202555-1 (Raytheon Company Div Corp).
Key specifications for G202555-1: Minor Thickness: 0.473 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN; Cross-Sectional Shape Style: GROOVED INSIDE CORNER; Outside Diameter: 4.000 INCHES NOMINAL IN; Major Thickness: 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN. 7 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.