The Bolt,machine, cataloged under National Stock Number 5306-00-151-6230, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 13 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 | 5306-00-151-6230 |
| Primary Part Number | MBEU1398GRU5 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Head Height | 0.093 INCHES NOMINAL IN |
| Fastener Length | 3.875 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Criticality Code Justification | FEAT |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Grip Length | 3.375 INCHES NOMINAL IN |
| Width Between Flats | 0.339 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL AND STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| MBEU1398GRU5 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5306-00-151-6230 is a Bolt,machine, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-151-6230 has 1 manufacturer part number on file: MBEU1398GRU5 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU1398GRU5: Head Height: 0.093 INCHES NOMINAL IN; Fastener Length: 3.875 INCHES NOMINAL IN; Thread Length: 0.500 INCHES MINIMUM IN; Criticality Code Justification: FEAT. 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.