The Bolt,machine, cataloged under National Stock Number 5306-01-278-6607, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-278-6607 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN |
| Fastener Length | 4.297 INCHES MINIMUM AND 4.344 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.968 INCHES MINIMUM IN |
| Supplementary Features | DBL SHEAR STR 22800.0 LB LBS |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | MAS6300 G40370 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6758 G41300 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 G41400 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6050 G86300 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6098 G87350 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-6049 G87400 MIL SPEC 6TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 96906-MS20074 GOVERNMENT STANDARD |
| Grip Length | 3.484 INCHES MINIMUM AND 3.516 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Hole Quantity | 6 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.065 INCHES MINIMUM AND 0.075 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 |
| Reference | Meaning |
|---|---|
| AN80H42 | 5/9 Secondary reference U.S. Government activity |
| MS20074-10-42 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-278-6607 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-278-6607: Head Height: 0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN; Fastener Length: 4.297 INCHES MINIMUM AND 4.344 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.968 INCHES MINIMUM IN. 24 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.