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National Stock Number: 5306-00-208-1532
Federal Supply Class: 5306
National Item Identification Number: 002081532
Description: BOLT,SQUARE NECK
Detail: A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
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Manufacturer Information:
70-4-6 | 99238 | AIR FORCE STANDARD |
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Techincal Specification:
FASTENER LENGTH | 0.750 INCHES NOMINAL | FEATURES PROVIDED | SQUARE NUT | HEAD DIAMETER | 0.563 INCHES NOMINAL | HEAD HEIGHT | 0.125 INCHES NOMINAL | HEAD STYLE | BUTTON | MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL OVERALL | NECK LENGTH | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | NECK WIDTH | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | NOMINAL THREAD DIAMETER | 0.250 INCHES | NONDEFINITIVE SPEC/STD DATA | C2 TYPE AND C CLASS | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.375 INCHES MINIMUM | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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