The Ring,retaining, cataloged under National Stock Number 5325-01-026-1405, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rotor Clip Company, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-026-1405 |
| Primary Part Number | 5304-18 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rotor Clip Company, Inc. |
| Status | ACTIVE |
| Material Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | AISI 1066 OR 1069 OR 1072 OR 1075 ASSN STD ALL MATERIAL RESPONSES OR AISI/SAE 1070 OR 1074 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 ASSN STD ALL MATERIAL RESPONSES |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.400 INCHES NOMINAL IN |
| Major Thickness | 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Inside Diameter | 0.137 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Material | STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1072 OR STEEL COMP 1075 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090 |
| 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 |
|---|---|
| 5304-18 PRIMARY | Rotor Clip Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5304-18 | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
| TTRKM1201 | 5/9 Secondary reference Comtec Information Systems Inc Digitronics Div |
NSN 5325-01-026-1405 is a Ring,retaining, manufactured by Rotor Clip Company, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-026-1405 has 1 manufacturer part number on file: 5304-18 (Rotor Clip Company, Inc.).
Key specifications for 5304-18: Material Hardness Rating: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: AISI 1066 OR 1069 OR 1072 OR 1075 ASSN STD ALL MATERIAL RESPONSES OR AISI/SAE 1070 OR 1074 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 ASSN STD ALL MATERIAL RESPONSES; 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.