The Setscrew, cataloged under National Stock Number 5305-00-650-3399, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 16 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 | 5305-00-650-3399 |
| Primary Part Number | MBEU3016 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Point Diameter | 0.184 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Head Height | 0.125 INCHES NOMINAL IN |
| Point Length | 0.188 INCHES NOMINAL IN |
| Fastener Length | 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Length | 0.125 INCHES MINIMUM IN |
| Point Chamfer Angle | 45.0 DEGREES NOMINAL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Point Style | CHAMFER DOG |
| Width Between Flats | 0.321 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Quantity Per Inch | 26 |
| Material | STEEL OVERALL |
| Thread Series Designator | WHITWORTH |
| 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 |
|---|---|
| MBEU3016 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5305-00-650-3399 is a Setscrew, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-650-3399 has 1 manufacturer part number on file: MBEU3016 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU3016: Point Diameter: 0.184 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN; Head Height: 0.125 INCHES NOMINAL IN; Point Length: 0.188 INCHES NOMINAL IN; Fastener Length: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. 16 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.