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National Stock Number:
5305-00-820-7744
Federal Supply Class:
5305
National Item Identification Number:
008207744
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:
| 8207744 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| FASTENER LENGTH | 1.062 INCHES NOMINAL | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | THUMB NO. 1 | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT LENGTH | 0.094 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | POINT DIAMETER | 0.094 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 1.500 INCHES NOMINAL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 0.582 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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