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National Stock Number:
5305-01-436-2420
Federal Supply Class:
5305
National Item Identification Number:
014362420
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:
| PWA82004-28 | 77445 | RTX CORPORATION |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 2.130 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 4.250 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 4.250 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.312 INCHES NOMINAL | | HARDNESS RATING | | | HEAD DIAMETER | 0.625 INCHES NOMINAL | | HEAD HEIGHT | 0.880 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | HOLE CONFIGURATION STYLE | ROUND | | HOLE DIAMETER | 0.280 INCHES NOMINAL | | HOLE QUANTITY | 1 | | HOLE TYPE | DRILLED | | MATERIAL | | | POINT STYLE | OVAL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | SECOND DIAMETER FROM HEAD | 0.220 INCHES MINIMUM AND 0.240 INCHES MAXIMUM | | THREAD LENGTH | 2.010 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 24 |
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