The Bolt,internal Wrenching, cataloged under National Stock Number 5306-00-626-0334, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-626-0334 |
| Primary Part Number | 2856-1028 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Width Across Flats | 0.062 INCHES NOMINAL IN |
| Head Height | 0.159 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN |
| Fastener Length | 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| Thread Length | 0.219 INCHES MINIMUM IN |
| First Diameter From Head | 0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.328 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.250 INCHES MINIMUM AND 0.281 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 |
NSN 5306-00-626-0334 is a Bolt,internal Wrenching, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-626-0334 has 2 manufacturer part numbers on file: 2856-1028 (Raytheon Company Dba Raytheon Co), 9051144 (Us Army Aviation and Missile Command).
Key specifications for 2856-1028: Width Across Flats: 0.062 INCHES NOMINAL IN; Head Height: 0.159 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN; Fastener Length: 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN; Thread Length: 0.219 INCHES MINIMUM IN. 16 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.