The Washer,key, cataloged under National Stock Number 5310-01-265-8971, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rotor Clip Company, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-265-8971 |
| Primary Part Number | TY-9ST ZD |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rotor Clip Company, Inc. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Material Thickness | 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 1075 OVERALL |
| Hole Diameter | 0.093 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| 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 |
|---|---|
| TY-9ST ZD PRIMARY | Rotor Clip Company, Inc. (USA) |
| 5105-9-ZDB | Rotor Clip Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5105-9-S-MD | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 704AS9662-1 | C/1 Advisory reference — outside the item-of-supply concept Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 704AS8662-1 | 5/9 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 6100-9-ST-CD | 5/9 Secondary reference U.S. Government activity |
| 899662-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5105-9-ZDB | 3/9 Design control — primary reference Truarc Company Llc Dba Waldes Truarc |
NSN 5310-01-265-8971 is a Washer,key, manufactured by Rotor Clip Company, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-265-8971 has 2 manufacturer part numbers on file: TY-9ST ZD (Rotor Clip Company, Inc.), 5105-9-ZDB (Rotor Clip Company, Inc.).
Key specifications for TY-9ST ZD: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN. 8 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.