5305-01-190-2179 SCREW,TAPPING Index 5306-01-190-2181 BOLT,SHOULDER

National Stock Number:
5306-01-190-2180

Federal Supply Class:
5306

National Item Identification Number:
011902180

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.


Manufacturer Information:
379718382577RAYTHEON COMPANY


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.115 INCHES MINIMUM AND 3.125 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.190 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.138 INCHES
SHOULDER DIAMETER0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM FOURTH HOLE
SHOULDER DIAMETER0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM SECOND SHOULDER
SHOULDER LENGTH0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM SECOND SHOULDER
SHOULDER LENGTH0.350 INCHES NOMINAL FOURTH HOLE
SHOULDER SHAPEROUND ALL SHOULDERS
THREAD CLASS2A
THREAD LENGTH0.375 INCHES MINIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC
WIDTH BETWEEN FLATS0.240 INCHES MINIMUM AND 0.252 INCHES MAXIMUM


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