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National Stock Number:
5305-00-405-8933
Federal Supply Class:
5305
National Item Identification Number:
004058933
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:
| 3008756-018-1 | 99696 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN SYSTEMS & GLOBAL SOLUTIONS |
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Techincal Specification:
| FASTENER LENGTH | 11.750 INCHES NOMINAL | | HEAD DIAMETER | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.338 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SHOULDER DIAMETER | 0.500 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.162 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF | | SURFACE TREATMENT | OXIDE OVERALL | | POINT STYLE | CONE | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL |
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