The Washer,key, cataloged under National Stock Number 5310-01-019-1975, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-019-1975 |
| Primary Part Number | 3500374-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.281 INCHES NOMINAL IN |
| Split Key Length | 0.125 INCHES NOMINAL IN |
| External Prebent Key Length | 0.094 INCHES NOMINAL IN |
| Overall Distance Including Keys | 0.594 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| External Tapered Key Width | 0.219 INCHES NOMINAL IN |
| Material Thickness | 0.031 INCHES NOMINAL IN |
| External Key Quantity | 1 |
| External Prebent Key Angle | 10.0 DEGREES NOMINAL |
| External Prebent Key Width | 0.125 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Angle Between External Keys | 45.0 DEGREES NOMINAL |
| Hole Diameter | 0.188 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 |
|---|---|
| 3500374-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3500374-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-019-1975 is a Washer,key, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-019-1975 has 1 manufacturer part number on file: 3500374-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3500374-1: Distance From Centerline to Inside of Prebent Key: 0.281 INCHES NOMINAL IN; Split Key Length: 0.125 INCHES NOMINAL IN; External Prebent Key Length: 0.094 INCHES NOMINAL IN; Overall Distance Including Keys: 0.594 INCHES NOMINAL IN. 14 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.