The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-666-3292, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-666-3292 |
| Primary Part Number | 4308577 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Head Height | 0.115 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Fastener Length | 0.50 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.322 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Thread Length | 0.50 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.1640 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 4308577 PRIMARY | Oshkosh Defense Llc (USA) |
NSN 5305-01-666-3292 is a Screw,cap,hexagon Head, manufactured by Oshkosh Defense Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-666-3292 has 1 manufacturer part number on file: 4308577 (Oshkosh Defense Llc).
Key specifications for 4308577: Extended Washer Thickness: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Head Height: 0.115 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Fastener Length: 0.50 INCHES NOMINAL IN; Extended Washer Diameter: 0.322 INCHES MINIMUM AND 0.348 INCHES MAXIMUM 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.