The Bolt,internal Wrenching, cataloged under National Stock Number 5306-00-655-6106, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-655-6106 |
| Primary Part Number | 8-77391-7 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Width Across Flats | 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Head Height | 0.312 INCHES NOMINAL IN |
| Fastener Length | 1.900 INCHES NOMINAL IN |
| Thread Length | 0.960 INCHES MINIMUM IN |
| Hole Configuration Style | ROUND |
| Material Document and Classification | MIL-S-5000,COMP 4340 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | BEVEL-CONICAL |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.058 INCHES NOMINAL IN |
| Head Diameter | 0.521 INCHES MINIMUM AND 0.531 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 |
|---|---|
| 8-77391-7 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| 8-77391-7 | 5/9 Secondary reference Hughes Missile Systems Co San Diego |
NSN 5306-00-655-6106 is a Bolt,internal Wrenching, manufactured by Raytheon Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-655-6106 has 1 manufacturer part number on file: 8-77391-7 (Raytheon Company).
Key specifications for 8-77391-7: Width Across Flats: 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN; Head Height: 0.312 INCHES NOMINAL IN; Fastener Length: 1.900 INCHES NOMINAL IN; Thread Length: 0.960 INCHES MINIMUM IN. 19 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.