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National Stock Number:
5305-00-930-3470
Federal Supply Class:
5305
National Item Identification Number:
009303470
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:
| 167A8313P1 | 02989 | GENERAL ELECTRIC CO GE DRIVE SYSTEMS GOVERNMENT BUSINESS OPN |
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Techincal Specification:
| NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.620 INCHES MINIMUM | | FASTENER LENGTH | 2.250 INCHES NOMINAL | | MATERIAL | STEEL COMP 303 OR | | STEEL COMP 303SE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764 FED SPEC ALL MATERIAL RESPONSES OVERALL | | HEAD STYLE | KNURLED NO. 2 | | HEAD DIAMETER | 0.560 INCHES NOMINAL | | HEAD HEIGHT | 0.470 INCHES NOMINAL | | HOLE CONFIGURATION STYLE | ROUND | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.062 INCHES NOMINAL | | POINT STYLE | FLAT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.250 INCHES NOMINAL | | SECOND DIAMETER FROM HEAD | 0.230 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.890 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.940 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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