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National Stock Number:
5305-00-298-1110
Federal Supply Class:
5305
National Item Identification Number:
002981110
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:
| 51983 | 24930 | L3HARRIS TECHNOLOGIES, INC |
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Techincal Specification:
| FASTENER LENGTH | 1.375 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.250 INCHES NOMINAL | | HEAD DIAMETER | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 1 | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-611,COMP B CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | POINT LENGTH | 0.031 INCHES NOMINAL | | POINT STYLE | FLAT | | PRECIOUS MATERIAL | SILVER | | SECOND DIAMETER FROM HEAD | 0.047 INCHES NOMINAL | | SURFACE TREATMENT | SILVER OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.328 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 24 |
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