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National Stock Number:
5305-00-382-4964
Federal Supply Class:
5305
National Item Identification Number:
003824964
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:
| 1181792 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 1798-1237PC1 | 49956 | RAYTHEON COMPANY |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES MINIMUM | | FASTENER LENGTH | 1.594 INCHES NOMINAL | | MATERIAL | COPPER ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-B-16033 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | THUMB NO. 9 | | HEAD HEIGHT | 0.781 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 1.625 INCHES NOMINAL | | POINT STYLE | CONE | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SHOULDER DIAMETER | 0.406 INCHES NOMINAL FIRST SHOULDER | | SHOULDER LENGTH | 0.219 INCHES NOMINAL FIRST SHOULDER |
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