The Washer,key, cataloged under National Stock Number 5310-01-476-7017, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-476-7017 |
| Primary Part Number | 74A400502-2005 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Internal Straight Key Width | 0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 1.7925 INCHES MINIMUM AND 1.7975 INCHES MAXIMUM IN |
| Supplementary Features | 24 .270 DIAM HOLES AROUND |
| Style Designator | KEY |
| Outside Diameter | 5.590 INCHES MINIMUM AND 5.610 INCHES MAXIMUM IN |
| Material Thickness | 0.124 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Material | STEEL COMP 1551 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 4.290 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 |
|---|---|
| 74A400502-2005 | Goodrich Corporation (USA) |
| 74A400502-2005 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74A400502-2005 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-01-476-7017 is a Washer,key, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-476-7017 has 2 manufacturer part numbers on file: 74A400502-2005 (Goodrich Corporation), 74A400502-2005 (The Boeing Company Div Defense).
Key specifications for 74A400502-2005: Internal Straight Key Width: 0.494 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 1.7925 INCHES MINIMUM AND 1.7975 INCHES MAXIMUM IN; Supplementary Features: 24 .270 DIAM HOLES AROUND; Style Designator: KEY. 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.