The Screw,assembled Washer, cataloged under National Stock Number 5305-01-623-5058, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 16 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 | 5305-01-623-5058 |
| Primary Part Number | 96909A450 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Extended Washer Thickness | 0.034 INCHES NOMINAL IN |
| Head Height | 0.097 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.261 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.261 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | MODIFIED PAN |
| Primary Washer Style | SPLIT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.034 INCHES NOMINAL IN |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Head Diameter | 0.270 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 |
|---|---|
| 96909A450 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-623-5058 is a Screw,assembled Washer, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-623-5058 has 1 manufacturer part number on file: 96909A450 (Mcmaster-Carr Supply Co).
Key specifications for 96909A450: Extended Washer Thickness: 0.034 INCHES NOMINAL IN; Head Height: 0.097 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Extended Washer Diameter: 0.261 INCHES NOMINAL IN. 16 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.