The Ring,retaining, cataloged under National Stock Number 5325-00-561-7789, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-561-7789 |
| Primary Part Number | 5100-81ZD |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rotor Clip Company, Inc. |
| Status | ACTIVE |
| Material Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN |
| Inside Diameter | 0.741 INCHES MINIMUM AND 0.756 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | DICHROMATE ZINC |
| Material | STEEL |
| 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 |
|---|---|
| 5100-81ZD PRIMARY | Rotor Clip Company, Inc. (USA) |
| 8518253 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| G650112-65 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 5100-81ZD | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
| G650112-65 | 5/9 Secondary reference At and T Corp |
NSN 5325-00-561-7789 is a Ring,retaining, manufactured by Rotor Clip Company, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-561-7789 has 2 manufacturer part numbers on file: 5100-81ZD (Rotor Clip Company, Inc.), 8518253 (Us Army Aviation and Missile Command).
Key specifications for 5100-81ZD: Material Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN. 9 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.