The Washer,key, cataloged under National Stock Number 5310-00-907-6416, 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 15 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 | 5310-00-907-6416 |
| Primary Part Number | S6135-22058-2 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Internal Straight Key Width | 0.625 INCHES NOMINAL IN |
| External Straight Key Length | 0.335 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 1.300 INCHES NOMINAL IN |
| Overall Distance Including Keys | 3.750 INCHES NOMINAL IN |
| Heat Treatment | NORMALIZED |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.080 INCHES NOMINAL IN |
| Material Thickness | 0.063 INCHES NOMINAL IN |
| External Straight Key Width | 0.156 INCHES MAXIMUM IN |
| External Key Quantity | 2 |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 2.875 INCHES NOMINAL 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 |
|---|---|
| S6135-22058-2 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5310-00-907-6416 is a Washer,key, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-907-6416 has 1 manufacturer part number on file: S6135-22058-2 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6135-22058-2: Internal Straight Key Width: 0.625 INCHES NOMINAL IN; External Straight Key Length: 0.335 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 1.300 INCHES NOMINAL IN; Overall Distance Including Keys: 3.750 INCHES NOMINAL IN. 15 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.