The Bolt,machine, cataloged under National Stock Number 5306-01-424-8940, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Skyline Industries, Inc. Government technical data includes 15 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 | 5306-01-424-8940 |
| Primary Part Number | SK178010-1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Skyline Industries, Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Height | 0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Thread Length | 0.470 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Locking Feature | LOCKING TEETH BEARING SURFACE OF HEAD |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| SK178010-1 PRIMARY | Skyline Industries, Inc (USA) |
NSN 5306-01-424-8940 is a Bolt,machine, manufactured by Skyline Industries, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-424-8940 has 1 manufacturer part number on file: SK178010-1 (Skyline Industries, Inc).
Key specifications for SK178010-1: Extended Washer Thickness: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Head Height: 0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Extended Washer Diameter: 0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN. 15 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.