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National Stock Number:
5305-00-118-1911
Federal Supply Class:
5305
National Item Identification Number:
001181911
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:
| 9031000 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 2.344 INCHES MINIMUM AND 2.468 INCHES MAXIMUM | | HEAD HEIGHT | 1.031 INCHES MINIMUM AND 1.093 INCHES MAXIMUM | | HEAD STYLE | WING NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A400-69 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | POINT STYLE | FLAT | | SPECIAL FEATURES | 0.062 BY 0.065 IN. DIA HOLE DRILLED 0.562 IN. FROM THD END | | WIDTH BETWEEN FLATS | 4.219 INCHES MINIMUM AND 4.281 INCHES MAXIMUM | | SURFACE TREATMENT | PAINT OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNC |
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