The Bolt,machine, cataloged under National Stock Number 5306-01-385-0751, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-385-0751 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 1.054 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN |
| Fastener Length | 3.750 INCHES NOMINAL IN |
| Thread Length | 3.750 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 2.538 INCHES MINIMUM AND 2.625 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | NICKEL ALLOY K-500 OVERALL |
| Thread Series Designator | UN |
| 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 |
|---|---|
| 1.750-8UN2AX3.750LG | 3/2 Design control — primary reference U.S. Government activity |
| 5486608 ITEM 16 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5306-01-385-0751 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-385-0751: Head Height: 1.054 INCHES MINIMUM AND 1.134 INCHES MAXIMUM IN; Fastener Length: 3.750 INCHES NOMINAL IN; Thread Length: 3.750 INCHES NOMINAL IN; Material Document and Classification: QQ-N-286 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.