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National Stock Number:
5305-00-816-6559
Federal Supply Class:
5305
National Item Identification Number:
008166559
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:
| 23100-10 | 81312 | WINCHESTER INTERCONNECT CORPORATION | | 3100-10 | 81312 | WINCHESTER INTERCONNECT CORPORATION |
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Techincal Specification:
| FASTENER LENGTH | 0.500 INCHES NOMINAL | | HEAD DIAMETER | 0.420 INCHES NOMINAL | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626,COMP 24,1/2 H FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | COPPER ALLOY 342 OR COPPER ALLOY 353 OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | POINT STYLE | FLAT | | SURFACE TREATMENT | NICKEL OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.500 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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