Part Details | THUMBSCREW
5305-00-870-3786 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: 101132514, 10113251-4, 5305-00-870-3786, 00-870-3786, 5305008703786, 008703786
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1962 | 00-870-3786 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
CONE
Cross Reference | NSN 5305-00-870-3786
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10113251-4 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5305-00-870-3786
| 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 | 0.312 INCHES MAXIMUM |
| FASTENER LENGTH | 1.212 INCHES NOMINAL |
| HEAD STYLE | 9 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.500 INCHES NOMINAL |
| HEAD HEIGHT | 0.600 INCHES NOMINAL |
| POINT STYLE | CONE |
| POINT LENGTH | 0.188 INCHES NOMINAL |
| POINT DIAMETER | 0.175 INCHES NOMINAL |
| POINT CHAMFER ANGLE | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM |
| SPECIAL FEATURES | 0.078 IN. SLOT THRU CENTER OF HEAD TO DEPTH OF 0.094 IN. |