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National Stock Number:
5305-01-284-5750
Federal Supply Class:
5305
National Item Identification Number:
012845750
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:
| 045-014 | 31106 | INSTRUMENT TECHNOLOGY, INC. | | A105856 | 31106 | INSTRUMENT TECHNOLOGY, INC. |
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Techincal Specification:
| FASTENER LENGTH | 0.680 INCHES NOMINAL | | HEAD DIAMETER | 0.380 INCHES NOMINAL | | HEAD HEIGHT | 0.430 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | POINT STYLE | CUP | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD LENGTH | 0.188 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 | | THREAD SERIES DESIGNATOR | UNC |
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