The Bolt,machine, cataloged under National Stock Number 5306-01-576-0400, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Amz Alabama Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-576-0400 |
| Primary Part Number | 4310592 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Thread Length | 1.375 INCHES NOMINAL IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Thread Quantity Per Inch | 16 |
| Material | STEEL 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 |
|---|---|
| 4310592 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4310592 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-576-0400 is a Bolt,machine, manufactured by Amz Alabama Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-576-0400 has 1 manufacturer part number on file: 4310592 (Amz Alabama Inc.).
Key specifications for 4310592: Fastener Length: 2.500 INCHES NOMINAL IN; Thread Length: 1.375 INCHES NOMINAL IN; Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL; Nominal Thread Diameter: 0.750 INCHES IN. 9 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.