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National Stock Number:
5305-01-127-2534
Federal Supply Class:
5305
National Item Identification Number:
011272534
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:
| 13044427 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13044427 | 26772 | WEGO PRECISION MACHINE, INC. | | 13044427 | 64609 | BANNER MACHINE COMPANY, INC. | | 13044427 | 8M850 | SHANNON MFG CO INC |
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Techincal Specification:
| FASTENER LENGTH | 1.065 INCHES NOMINAL | | HEAD HEIGHT | 0.790 INCHES NOMINAL | | HEAD STYLE | WING NO. 2 | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT CHAMFER ANGLE | 90.0 DEGREES NOMINAL | | POINT DIAMETER | 0.186 INCHES NOMINAL | | POINT LENGTH | 0.250 INCHES NOMINAL | | POINT STYLE | FLAT | | WIDTH BETWEEN FLATS | 1.500 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-186 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CHROMIUM OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.560 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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