The Washer,key, cataloged under National Stock Number 5310-01-355-4608, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-355-4608 |
| Primary Part Number | S6130-61093-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 100.0 MICROINCHES ALL SURFACES |
| Internal Straight Key Width | 0.1580 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.4420 INCHES MINIMUM AND 0.4470 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Material Thickness | 0.0550 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.0100 INCHES MINIMUM AND 1.0200 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 |
|---|---|
| S6130-61093-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-01-355-4608 is a Washer,key, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-355-4608 has 1 manufacturer part number on file: S6130-61093-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6130-61093-1: Surface Finish: 100.0 MICROINCHES ALL SURFACES; Internal Straight Key Width: 0.1580 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.4420 INCHES MINIMUM AND 0.4470 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 12 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.