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National Stock Number:
5305-00-297-0914
Federal Supply Class:
5305
National Item Identification Number:
002970914
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:
| 41495 | 24930 | L3HARRIS TECHNOLOGIES, INC |
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Techincal Specification:
| FASTENER LENGTH | 0.344 INCHES NOMINAL | | HEAD DIAMETER | 0.250 INCHES NOMINAL | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-636 FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | COPPER ALLOY 464 OR COPPER ALLOY 462 OR COPPER ALLOY 485 OVERALL | | NOMINAL THREAD DIAMETER | 0.138 INCHES | | POINT STYLE | OVAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.281 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD QUANTITY PER INCH | 32 |
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