The Bolt,machine, cataloged under National Stock Number 5306-01-350-8223, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-350-8223 |
| Primary Part Number | 1393850 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.104 INCHES MINIMUM IN |
| Head Height | 0.274 INCHES MINIMUM AND 0.298 INCHES MAXIMUM IN |
| Fastener Length | 0.620 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.686 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN |
| Thread Length | 0.509 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1022 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 |
|---|---|
| 1393850 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 1393850 | 5/9 Secondary reference Oshkosh Corp |
| 31WLFS51618(.62) | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-350-8223 is a Bolt,machine, manufactured by Oshkosh Defense Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-350-8223 has 1 manufacturer part number on file: 1393850 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 7690-01-473-4197. Verify interchangeability with system specifications before substitution.
Key specifications for 1393850: Extended Washer Thickness: 0.104 INCHES MINIMUM IN; Head Height: 0.274 INCHES MINIMUM AND 0.298 INCHES MAXIMUM IN; Fastener Length: 0.620 INCHES NOMINAL IN; Extended Washer Diameter: 0.686 INCHES MINIMUM AND 0.706 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.