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National Stock Number:
5305-01-480-4843
Federal Supply Class:
5305
National Item Identification Number:
014804843
Description:
THUMBSCREW
Detail:
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).
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Manufacturer Information:
| 123-4403525 PART 42 | 43689 | HUNTINGTON INGALLS INC | | 123-44036527 PART 22 | 43689 | HUNTINGTON INGALLS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 13 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES NOMINAL | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | HEAD STYLE | KNURLED NO. 4 | | HEAD DIAMETER | 0.938 INCHES NOMINAL | | HEAD HEIGHT | 0.625 INCHES NOMINAL | | SPECIAL FEATURES | HAS KNOB ON HEAD THAT IS 0.625 IN DIA., 0.375 IN HIGH, AND HAS 0.125 IN DEEP GROOVE THAT IS 0.156 IN WIDE |
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