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National Stock Number:
5305-00-078-8966
Federal Supply Class:
5305
National Item Identification Number:
000788966
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:
| 10548357 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.125 INCHES MINIMUM | | FASTENER LENGTH | 3.688 INCHES NOMINAL | | MATERIAL | STEEL COMP 1010 OR | | STEEL COMP 303 OVERALL | | SURFACE TREATMENT | PAINT AND | | PASSIVATE OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.312 INCHES NOMINAL | | POINT STYLE | FLAT | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.344 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 2.563 INCHES NOMINAL FIRST SHOULDER | | SPECIAL FEATURES | COLOR OLIVE DRAB,0.062 IN. DIA HOLE DRILLED 3.595 IN. FROM HEAD |
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