The Bolt,machine, cataloged under National Stock Number 5306-00-168-0155, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Joy Global Underground Mining Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-168-0155 |
| Primary Part Number | 31368W |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Joy Global Underground Mining Llc |
| Status | ACTIVE |
| Head Height | 0.300 INCHES NOMINAL IN |
| Fastener Length | 2.750 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.266 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.738 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 |
|---|---|
| 31368 | Joy Global Underground Mining Llc (USA) |
| 31368W PRIMARY | Joy Global Underground Mining Llc (USA) |
| Reference | Meaning |
|---|---|
| 31368W | 5/9 Secondary reference U.S. Government activity |
| W6703ITEM11 | 5/9 Secondary reference U.S. Government activity |
| W6703ITEM11 | 5/9 Secondary reference Joy Global Underground Mining Llc |
| W6703ITEM41 | 5/9 Secondary reference U.S. Government activity |
| 31368 | 5/9 Secondary reference U.S. Government activity |
| W6703ITEM41 | 5/9 Secondary reference Joy Global Underground Mining Llc |
| W67031TEM11 | C/1 Advisory reference — outside the item-of-supply concept Joy Global Underground Mining Llc |
NSN 5306-00-168-0155 is a Bolt,machine, manufactured by Joy Global Underground Mining Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-168-0155 has 2 manufacturer part numbers on file: 31368 (Joy Global Underground Mining Llc), 31368W (Joy Global Underground Mining Llc).
Key specifications for 31368W: Head Height: 0.300 INCHES NOMINAL IN; Fastener Length: 2.750 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.266 INCHES NOMINAL IN; Thread Length: 0.875 INCHES NOMINAL 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.