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National Stock Number:
5305-01-210-1651
Federal Supply Class:
5305
National Item Identification Number:
012101651
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:
| 9M213B10-20 | 76301 | THE BOEING COMPANY | | CL-031-SHS-20 | 99862 | CARR LANE MANUFACTURING CO | | CL-530-SHS-20 | 99862 | CARR LANE MANUFACTURING CO |
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Techincal Specification:
| FASTENER LENGTH | 4.971 INCHES MINIMUM AND 5.091 INCHES MAXIMUM | | HEAD HEIGHT | 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM | | HEAD DIAMETER | 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM | | HEAD STYLE | KNURLED NO. 4 | | MATERIAL | STEEL COMP 1020 OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | POINT LENGTH | 0.626 INCHES MINIMUM AND 0.686 INCHES MAXIMUM | | POINT STYLE | UNIVERSAL | | POINT SWIVEL INCLUDED ANGLE | 20.0 DEGREES NOMINAL | | POINT DIAMETER | 0.908 INCHES MINIMUM AND 0.968 INCHES MAXIMUM | | SPECIAL FEATURES | THREADED BALL PERMITS REMOVAL OF SWIVEL BASE | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 4.067 INCHES MINIMUM AND 4.307 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 11 |
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