The Ring,retaining, cataloged under National Stock Number 5325-00-236-3710, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-236-3710 |
| Primary Part Number | A2669CC |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Material Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Usage Design | INTERNAL |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1065 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 5.250 INCHES NOMINAL IN |
| Major Thickness | 0.109 INCHES NOMINAL IN |
| Inside Diameter | 4.875 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL STEPPED |
| Material | STEEL COMP 1065 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5325-00-236-3710 is a Ring,retaining, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-236-3710 has 2 manufacturer part numbers on file: A2669CC (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), A2669CC (Peterson American Corp).
Key specifications for A2669CC: Material Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM; Usage Design: INTERNAL; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1065 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 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.