The Bolt,shoulder, cataloged under National Stock Number 5306-01-321-6668, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hale Products, Inc.. 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 | 5306-01-321-6668 |
| Primary Part Number | 018-9500-00-0 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hale Products, Inc. |
| Status | ACTIVE |
| Head Height | 0.320 INCHES NOMINAL IN |
| Fastener Length | 0.524 INCHES NOMINAL IN |
| Shoulder Length | 0.226 INCHES MINIMUM AND 0.230 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.292 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 018-9500-00-0 PRIMARY | Hale Products, Inc. (USA) |
NSN 5306-01-321-6668 is a Bolt,shoulder, manufactured by Hale Products, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-321-6668 has 1 manufacturer part number on file: 018-9500-00-0 (Hale Products, Inc.).
Key specifications for 018-9500-00-0: Head Height: 0.320 INCHES NOMINAL IN; Fastener Length: 0.524 INCHES NOMINAL IN; Shoulder Length: 0.226 INCHES MINIMUM AND 0.230 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM FIRST SHOULDER 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.