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National Stock Number:
5305-01-307-6236
Federal Supply Class:
5305
National Item Identification Number:
013076236
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:
| 6196071 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| COLOR | BLACK OVERALL | | CRITICALITY CODE JUSTIFICATION | FEAT | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.410 INCHES NOMINAL | | HEAD HEIGHT | 0.310 INCHES NOMINAL | | HEAD DIAMETER | 0.880 INCHES NOMINAL | | HEAD STYLE | KNURLED NO. 2 | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B21-83,UNS C46400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 464 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | SHOULDER DIAMETER | 0.500 INCHES NOMINAL FIRST SHOULDER | | SHOULDER SHAPE | ROUND FIRST SHOULDER | | SPECIAL FEATURES | EXPLOSIVE ORDNANCE DISPOSAL TOOLS/EQUIPMENT | | THREAD CLASS | 2A | | THREAD LENGTH | 0.390 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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