Part Details | THUMBSCREW
5305-01-042-7540 An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
Alternate Parts: 29388641, 29-38864-1, 5305-01-042-7540, 01-042-7540, 5305010427540, 010427540
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUN 14, 1977 | 01-042-7540 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
OVAL
Cross Reference | NSN 5305-01-042-7540
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 29-38864-1 | 81205 | THE BOEING COMPANYDBA BOEING |
Technical Data | NSN 5305-01-042-7540
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 13 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.400 INCHES NOMINAL |
| FASTENER LENGTH | 3.100 INCHES NOMINAL |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 3.000 INCHES NOMINAL |
| HEAD HEIGHT | 0.620 INCHES NOMINAL |
| POINT STYLE | 2 OVAL |
| FIRST DIAMETER FROM HEAD | 0.374 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.700 INCHES NOMINAL |