Part Details | THUMBSCREW
5305-00-645-9759 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: 9077556, 5305-00-645-9759, 00-645-9759, 5305006459759, 006459759
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-645-9759 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON
FLAT
Cross Reference | NSN 5305-00-645-9759
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 9077556 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5305-00-645-9759
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.500 INCHES MINIMUM |
| FASTENER LENGTH | 1.000 INCHES NOMINAL |
| HEAD STYLE | 5 DOUBLE HEXAGON |
| HEAD HEIGHT | 0.750 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.938 INCHES NOMINAL |
| POINT STYLE | 6 FLAT |
| FIRST DIAMETER FROM HEAD | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.500 INCHES MINIMUM |