The Washer,keyway, cataloged under National Stock Number 5310-00-124-9785, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corp Dba Eaton Aerospace Jackson. Government technical data includes 8 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 | 5310-00-124-9785 |
| Primary Part Number | 209419-4 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Corp Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| Distance From Centerline to Bottom of Internal Keyway | 0.043 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Internal Keyway Width | 0.064 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Heat Treatment | F-AS FABRICATED |
| Outside Diameter | 1.110 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN |
| Internal Keyway Quantity | 1 |
| Material Thickness | 0.0067 INCHES MINIMUM AND 0.0073 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 1100 OVERALL |
| Hole Diameter | 0.439 INCHES MINIMUM AND 0.444 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 |
|---|---|
| 209419-4 PRIMARY | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
NSN 5310-00-124-9785 is a Washer,keyway, manufactured by Eaton Corp Dba Eaton Aerospace Jackson, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-124-9785 has 1 manufacturer part number on file: 209419-4 (Eaton Corp Dba Eaton Aerospace Jackson).
Key specifications for 209419-4: Distance From Centerline to Bottom of Internal Keyway: 0.043 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN; Internal Keyway Width: 0.064 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Heat Treatment: F-AS FABRICATED; Outside Diameter: 1.110 INCHES MINIMUM AND 1.130 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.