The Bolt,machine, cataloged under National Stock Number 5306-01-135-1628, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-135-1628 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OVERALL125.0 MICROINCHES OVERALL |
| Head Height | 0.224 INCHES NOMINAL0.224 INCHES NOMINAL IN |
| Fastener Length | 1.730 INCHES NOMINAL1.730 INCHES NOMINAL IN |
| Thread Length | 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES0.250 INCHES IN |
| Head Style | ROUND W/WRENCH FLATSROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 1.360 INCHES NOMINAL1.360 INCHES NOMINAL IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM0.439 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 135000 POUNDS PER SQUARE INCH135000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2828 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNFUNF |
| Head Diameter | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL 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 |
|---|---|
| 4G13968-103A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-135-1628 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-135-1628: Surface Finish: 125.0 MICROINCHES OVERALL125.0 MICROINCHES OVERALL; Head Height: 0.224 INCHES NOMINAL0.224 INCHES NOMINAL IN; Fastener Length: 1.730 INCHES NOMINAL1.730 INCHES NOMINAL IN; Thread Length: 0.370 INCHES NOMINAL0.370 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.