The Bolt,internal Wrenching, cataloged under National Stock Number 5306-00-680-4785, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 18 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 | 5306-00-680-4785 |
| Primary Part Number | 1786187 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Width Across Flats | 0.313 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Head Height | 0.250 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Thread Length | 2.000 INCHES MINIMUM IN |
| Hole Configuration Style | ROUND LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | BEVEL-CONICAL |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND CHROMATE OR CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4130 OVERALL |
| Hole Quantity | 6 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.062 INCHES NOMINAL IN |
| Head Diameter | 0.517 INCHES MINIMUM AND 0.537 INCHES MAXIMUM 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 |
|---|---|
| 1786187 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5306-00-680-4785 is a Bolt,internal Wrenching, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-680-4785 has 1 manufacturer part number on file: 1786187 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1786187: Width Across Flats: 0.313 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN; Head Height: 0.250 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN; Fastener Length: 2.500 INCHES NOMINAL IN; Thread Length: 2.000 INCHES MINIMUM IN. 18 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.