The Bolt,shoulder, cataloged under National Stock Number 5306-00-246-6149, 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 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-246-6149 |
| Primary Part Number | MBEU1163F5 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Head Height | 0.500 INCHES NOMINAL IN |
| Fastener Length | 6.000 INCHES NOMINAL IN |
| Shoulder Length | 0.140 INCHES NOMINAL SECOND SHOULDER IN |
| Shoulder Length | 1.175 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.375 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.460 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shoulder Shape | HEXAGONAL SECOND SHOULDER |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.431 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Shoulder Width Across Flats | 0.431 INCHES MINIMUM AND 0.438 INCHES MAXIMUM SECOND SHOULDER IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| MBEU1163F5 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
| MBEU1163F5 | Autoflug Gmbh (DEU) |
NSN 5306-00-246-6149 is a Bolt,shoulder, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-246-6149 has 2 manufacturer part numbers on file: MBEU1163F5 (Martin-Baker Aircraft Company Limited), MBEU1163F5 (Autoflug Gmbh).
Key specifications for MBEU1163F5: Head Height: 0.500 INCHES NOMINAL IN; Fastener Length: 6.000 INCHES NOMINAL IN; Shoulder Length: 0.140 INCHES NOMINAL SECOND SHOULDER IN; Shoulder Length: 1.175 INCHES NOMINAL FIRST SHOULDER IN. 18 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.