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National Stock Number: 5305-00-778-3331
Federal Supply Class: 5305
National Item Identification Number: 007783331
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:
7043243P1 | 03538 | LOCKHEED MARTIN CORPORATION | 7043243P1 | 10543 | CANADIAN GENERAL ELECTRIC CO LTD | 7043243P1 | 24446 | GENERAL ELECTRIC COMPANY |
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Techincal Specification:
FASTENER LENGTH | 1.400 INCHES NOMINAL | HEAD DIAMETER | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM | HEAD HEIGHT | 0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM | HEAD STYLE | KNURLED NO. 1 | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | COPPER ALLOY 360 OVERALL | NOMINAL THREAD DIAMETER | 0.190 INCHES | POINT STYLE | FLAT | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F70C5A,FSCM 24446 MFR REF SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.338 INCHES MINIMUM | THREAD SERIES DESIGNATOR | UNF | THREAD QUANTITY PER INCH | 32 |
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