The Screw,assembled Washer, cataloged under National Stock Number 5305-01-500-7231, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Gichner Systems Group, Inc. Div C5isr Division. Government technical data includes 12 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 | 5305-01-500-7231 |
| Primary Part Number | 1424011A |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Gichner Systems Group, Inc. Div C5isr Division |
| Status | ACTIVE |
| Extended Washer Thickness | 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| Head Height | 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.372 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Primary Washer Style | FLAT INTERNAL TEETH |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Quantity Per Inch | 32 |
| Material | COPPER ALLOY OVERALL |
| Washer Quantity | 1 |
| 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 |
|---|---|
| 1424011A PRIMARY | Gichner Systems Group, Inc. Div C5isr Division (USA) |
NSN 5305-01-500-7231 is a Screw,assembled Washer, manufactured by Gichner Systems Group, Inc. Div C5isr Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-500-7231 has 1 manufacturer part number on file: 1424011A (Gichner Systems Group, Inc. Div C5isr Division).
Key specifications for 1424011A: Extended Washer Thickness: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN; Head Height: 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES NOMINAL IN; Extended Washer Diameter: 0.372 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN. 12 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.