The Bolt,internal Wrenching, cataloged under National Stock Number 5306-00-649-6979, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Corp. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-649-6979 |
| Primary Part Number | 2788-1037 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Width Across Flats | 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Head Height | 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN |
| Fastener Length | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| Thread Length | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| First Diameter From Head | 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.221 INCHES MINIMUM AND 0.226 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 5306-00-649-6979 is a Bolt,internal Wrenching, manufactured by Raytheon Company Div Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-649-6979 has 2 manufacturer part numbers on file: 2788-1037 (Raytheon Company Div Corp), 9084973 (Us Army Aviation and Missile Command).
Key specifications for 2788-1037: Width Across Flats: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN; Fastener Length: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; Thread Length: 0.234 INCHES MINIMUM AND 0.266 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.