The Ring,retaining, cataloged under National Stock Number 5325-00-598-2146, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 11 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-598-2146 |
| Primary Part Number | 211958 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Material Hardness Rating | 64.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | AMS 5121B ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 6.180 INCHES NOMINAL IN |
| Major Thickness | 0.057 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN |
| Inside Diameter | 5.940 INCHES MINIMUM AND 5.960 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | HOOKED WIRE |
| Surface Treatment | CADMIUM |
| Material | STEEL COMP 1095 |
| 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 |
|---|---|
| 211958 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 5325-00-598-2146 is a Ring,retaining, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-598-2146 has 1 manufacturer part number on file: 211958 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-620-7061, 5961-01-298-3937. Verify interchangeability with system specifications before substitution.
Key specifications for 211958: Material Hardness Rating: 64.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: AMS 5121B ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 11 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.