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National Stock Number:
5305-01-088-1967
Federal Supply Class:
5305
National Item Identification Number:
010881967
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:
| 13047931 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.125 INCHES NOMINAL | | FASTENER LENGTH | 0.343 INCHES NOMINAL | | MATERIAL | STEEL COMP 316 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.500 INCHES NOMINAL | | POINT STYLE | FLAT | | POINT LENGTH | 0.020 INCHES NOMINAL | | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FIRST DIAMETER FROM HEAD | 0.147 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.218 INCHES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 13047931 |
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