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National Stock Number:
5305-00-651-3878
Federal Supply Class:
5305
National Item Identification Number:
006513878
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:
| 527242 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.240 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.840 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.134 INCHES MINIMUM AND 0.144 INCHES MAXIMUM | | HARDNESS RATING | 53.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM OVERALL | | HEAD LENGTH | 0.520 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | POINT STYLE | FLAT | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | POINT LENGTH | 0.030 INCHES NOMINAL | | TEE BOLT CYLINDRICAL HEAD DIAMETER | 0.198 INCHES MINIMUM AND 0.199 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.600 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 30 | | THREAD SERIES DESIGNATOR | UNF |
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