The Bolt,machine, cataloged under National Stock Number 5306-01-141-7864, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-141-7864 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN |
| Fastener Length | 3.265 INCHES MINIMUM AND 3.265 INCHES MINIMUM AND 3.312 INCHES MAXIMUM3.312 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.874 INCHES MINIMUM AND 0.874 INCHES MINIMUM AND 0.953 INCHES MAXIMUM0.953 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.562 INCHES0.562 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 2.359 INCHES MINIMUM AND 2.359 INCHES MINIMUM AND 2.391 INCHES MAXIMUM2.391 INCHES MAXIMUM IN |
| Width Between Flats | 0.865 INCHES MINIMUM AND 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM0.877 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CADMIUM AND CHROMATE OVERALLCHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 1818 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNFUNF |
| 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 |
|---|---|
| AN9-31A | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-141-7864 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-141-7864: Head Height: 0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN; Fastener Length: 3.265 INCHES MINIMUM AND 3.265 INCHES MINIMUM AND 3.312 INCHES MAXIMUM3.312 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.874 INCHES MINIMUM AND 0.874 INCHES MINIMUM AND 0.953 INCHES MAXIMUM0.953 INCHES MAXIMUM IN. 17 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.