The Ring,retaining, cataloged under National Stock Number 5325-00-839-0758, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Spirolox Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-839-0758 |
| Primary Part Number | RS66S |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Spirolox Inc |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| Outside Diameter | 0.716 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Usage Design | EXTERNAL OR INTERNAL |
| Major Thickness | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Inside Diameter | 0.616 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN |
| Ring Style | SPIRAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5325-00-839-0758 is a Ring,retaining, manufactured by Spirolox Inc, classified under FSC 5325 (No Item Name Available). Status: active.
NSN 5325-00-839-0758 has 2 cross-referenced part numbers: RS66S (Spirolox Inc), 373213 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There are 4 known substitutes for 5325-00-839-0758: 6240-00-143-6557, 5325-00-515-0603, 5940-00-549-8991 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for RS66S: Material: STEEL CORROSION RESISTING; Outside Diameter: 0.716 INCHES MINIMUM AND 0.749 INCHES MAXIMUM IN; Casehardening Indicator: NOT CASEHARDENED; Usage Design: EXTERNAL OR INTERNAL. 8 total characteristics are documented in the Federal Logistics Information System.