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National Stock Number:
5305-00-275-5408
Federal Supply Class:
5305
National Item Identification Number:
002755408
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:
| 12Z15PC28 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 43S19132-165 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| FASTENER LENGTH | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.562 INCHES MINIMUM AND 0.688 INCHES MAXIMUM | | HEAD STYLE | WING NO. 2 | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE 70B ASSN STD 1ST MATERIAL RESPONSE OR QQ-B-639 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY OR COPPER ALLOY 464 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | POINT STYLE | FLAT | | WIDTH BETWEEN FLATS | 1.250 INCHES MINIMUM AND 1.312 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
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