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National Stock Number:
5305-00-758-4908
Federal Supply Class:
5305
National Item Identification Number:
007584908
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:
| 10932391 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 5305007584908 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.812 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 3.687 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 5.375 INCHES NOMINAL | | FASTENER LENGTH | 5.375 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.626 INCHES MINIMUM AND 0.628 INCHES MAXIMUM | | HEAD DIAMETER | 1.500 INCHES NOMINAL | | HEAD HEIGHT | 1.063 INCHES MINIMUM AND 1.188 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL | STEEL COMP 1008 OR STEEL COMP 1020 OVERALL | | POINT DIAMETER | 0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM | | POINT LENGTH | 1.688 INCHES NOMINAL | | POINT STYLE | CHAMFER DOG | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | SECOND DIAMETER FROM HEAD | 0.500 INCHES NOMINAL | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER LENGTH | 1.812 INCHES NOMINAL FIRST SHOULDER | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THIRD DIAMETER FROM HEAD | 0.375 INCHES NOMINAL | | THREAD LENGTH | 1.750 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNF |
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