The Bolt,machine, cataloged under National Stock Number 5306-01-164-2309, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Ara, Inc. Government technical data includes 17 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 | 5306-01-164-2309 |
| Primary Part Number | B4072-1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Ara, Inc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.800 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 CL2 TY2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.313 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS 6370 ASSN 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 | 0.487 INCHES NOMINAL IN |
| Width Between Flats | 0.563 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| B4072-1 PRIMARY | Ara, Inc (USA) |
NSN 5306-01-164-2309 is a Bolt,machine, manufactured by Ara, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-164-2309 has 1 manufacturer part number on file: B4072-1 (Ara, Inc).
Key specifications for B4072-1: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 0.800 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 CL2 TY2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.313 INCHES NOMINAL 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.