The Washer,lock, cataloged under National Stock Number 5310-01-020-4472, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-020-4472 |
| Primary Part Number | 1300293-1 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.460 INCHES NOMINAL0.460 INCHES NOMINAL IN |
| Material Thickness | 0.045 INCHES NOMINAL0.045 INCHES NOMINAL IN |
| Surface Treatment | COPPER ALLOY OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.225 INCHES NOMINAL0.225 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 |
|---|---|
| 1300293-1 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
| Reference | Meaning |
|---|---|
| 1300293-1 | 5/9 Secondary reference Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems |
NSN 5310-01-020-4472 is a Washer,lock, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-020-4472 has 1 manufacturer part number on file: 1300293-1 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for 1300293-1: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.460 INCHES NOMINAL0.460 INCHES NOMINAL IN; Material Thickness: 0.045 INCHES NOMINAL0.045 INCHES NOMINAL IN; Surface Treatment: COPPER ALLOY OVERALL. 6 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.