The Bolt,machine, cataloged under National Stock Number 5306-00-437-1900, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-437-1900 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 0.968 INCHES NOMINAL IN |
| Thread Length | 0.928 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.104 INCHES MINIMUM AND 0.109 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OR AN-S-9 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.040 INCHES NOMINAL IN |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 8630 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.800 INCHES NOMINAL FIRST HOLE 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 |
|---|---|
| 142752 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-437-1900 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-437-1900: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 0.968 INCHES NOMINAL IN; Thread Length: 0.928 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.104 INCHES MINIMUM AND 0.109 INCHES MAXIMUM FIRST HOLE 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.