The Bolt,square Neck, cataloged under National Stock Number 5306-01-208-6717, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-208-6717 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Fastener Length | 12.000 INCHES NOMINAL IN |
| Thread Length | 6.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | TRUSS |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| 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 |
| Reference | Meaning |
|---|---|
| 390-001 | 3/9 Design control — primary reference Dorman Products, Inc. Dba Dorman |
NSN 5306-01-208-6717 is a Bolt,square Neck, classified under FSC 5306, Bolts. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5920-01-488-6605, 6145-01-582-0559, 2590-01-598-5120. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-01-208-6717: Fastener Length: 12.000 INCHES NOMINAL IN; Thread Length: 6.000 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN; Head Style: TRUSS. 10 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.