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National Stock Number: 5305-00-065-3194
Federal Supply Class: 5305
National Item Identification Number: 000653194
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:
4041 | 00141 | ROLLER BEARING CO OF AMERICA, INC | PQ-32-3 | 29440 | W. M. BERG INC |
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Techincal Specification:
FASTENER LENGTH | 0.750 INCHES NOMINAL | HEAD DIAMETER | 0.500 INCHES NOMINAL | HEAD HEIGHT | 0.188 INCHES NOMINAL | HEAD STYLE | KNURLED NO. 1 | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18732 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OVERALL | NOMINAL THREAD DIAMETER | 0.190 INCHES | POINT STYLE | FLAT | SURFACE TREATMENT | PASSIVATE OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.625 INCHES MINIMUM | THREAD QUANTITY PER INCH | 32 | THREAD SERIES DESIGNATOR | UNF |
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