The Bolt,machine, cataloged under National Stock Number 5306-00-537-7737, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-537-7737 |
| Primary Part Number | 5377737 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Head Height | 0.688 INCHES NOMINAL IN |
| Fastener Length | 8.500 INCHES NOMINAL IN |
| Thread Length | 1.875 INCHES MINIMUM IN |
| Hardness Rating | 187.0 BRINELL HULTGREN MINIMUM AND 237.0 BRINELL HULTGREN MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.219 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 1.125 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.688 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 8.250 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 |
| Part Number | Manufacturer |
|---|---|
| 5377737 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5306-00-537-7737 is a Bolt,machine, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-537-7737 has 1 manufacturer part number on file: 5377737 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5377737: Head Height: 0.688 INCHES NOMINAL IN; Fastener Length: 8.500 INCHES NOMINAL IN; Thread Length: 1.875 INCHES MINIMUM IN; Hardness Rating: 187.0 BRINELL HULTGREN MINIMUM AND 237.0 BRINELL HULTGREN MAXIMUM OVERALL. 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.