The Bolt,machine, cataloged under National Stock Number 5306-00-271-8441, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-271-8441 |
| Primary Part Number | 3246438 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Head Height | 0.750 INCHES NOMINAL IN |
| Fastener Length | 4.375 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.313 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 3130 OVERALL |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 3246438 PRIMARY | Hatch & Kirk, Inc. (USA) |
| 3249267 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3246438 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| 3249267 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
NSN 5306-00-271-8441 is a Bolt,machine, manufactured by Hatch & Kirk, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-271-8441 has 2 manufacturer part numbers on file: 3246438 (Hatch & Kirk, Inc.), 3249267 (Hatch & Kirk, Inc.).
Key specifications for 3246438: Head Height: 0.750 INCHES NOMINAL IN; Fastener Length: 4.375 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MINIMUM IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 13 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.