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National Stock Number:
5305-01-124-4451
Federal Supply Class:
5305
National Item Identification Number:
011244451
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:
| 4592477 ITEM 14 | 12934 | NAVAL AIR WARFARE CENTER WEAPONS DIV | | 4592569-1 | 12934 | NAVAL AIR WARFARE CENTER WEAPONS DIV | | 4592569-1 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| FASTENER LENGTH | 3.750 INCHES NOMINAL | | HEAD HEIGHT | 0.400 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | HEAD STYLE | THUMB NO. 7 | | MATERIAL | STEEL COMP 316 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | OVAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.800 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH BETWEEN FLATS | 1.120 INCHES NOMINAL |
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