The Bolt,machine, cataloged under National Stock Number 5306-01-679-0936, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is H-K Connecticut Holding Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-679-0936 |
| Primary Part Number | 11540789 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | H-K Connecticut Holding Company |
| Status | ACTIVE |
| Head Height | 0.273 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | SPECIAL ECOFINISH TO MEET 1000 HOURS OF SALT SPRAY CORROSION RESISTANCE MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.750 INCHES NOMINAL IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AISI 8637/8640/8740 MEDIUM CARBON ALLOY STEEL WIRE OR 4340 ALLOY STEEL BAR STOCK,GRADE 9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Color | GRAY/GREY OR SILVER OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| 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 |
NSN 5306-01-679-0936 is a Bolt,machine, manufactured by H-K Connecticut Holding Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-679-0936 has 2 manufacturer part numbers on file: 11540789 (Fastenal Company Dba Fastenal Co), 11540789 (H-K Connecticut Holding Company).
Key specifications for 11540789: Head Height: 0.273 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN; Fastener Length: 0.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: SPECIAL ECOFINISH TO MEET 1000 HOURS OF SALT SPRAY CORROSION RESISTANCE MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.750 INCHES NOMINAL 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.