Part Details | THUMBSCREW
5305-01-163-9286 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: SCB577975, SC-B-577975, 5305-01-163-9286, 01-163-9286, 5305011639286, 011639286
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | OCT 10, 1983 | 01-163-9286 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
FLAT
Cross Reference | NSN 5305-01-163-9286
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SC-B-577975 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5305-01-163-9286
| 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 NOMINAL |
| FASTENER LENGTH | 1.500 INCHES NOMINAL |
| HEAD STYLE | 3 CROWNED HEXAGON |
| HEAD DIAMETER | 1.000 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| POINT STYLE | 6 FLAT |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.500 INCHES NOMINAL |
| SECOND DIAMETER FROM HEAD | 0.125 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.625 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.000 INCHES NOMINAL |
| SPECIAL FEATURES | KNURLED HEAD; LOCKINGDEVICE ON BEARING SURFACE OF SHOULDER |