6685-01-270-4066 SUPPORT,BAROGRAPH Index 5305-01-270-4068 SCREW,MACHINE

National Stock Number:
5306-01-270-4067

Federal Supply Class:
5306

National Item Identification Number:
012704067

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
NAS1271H380205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
EXTENDED WASHER DIAMETER0.360 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
FASTENER LENGTH0.663 INCHES MINIMUM AND 0.683 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
HEAD HEIGHT0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
HOLE QUANTITY4
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONNAS 621 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALTITANIUM ALLOY UNS R56400 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIFICATION/STANDARD DATA80205-NAS1271 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WIDTH BETWEEN FLATS0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
SURFACE FINISH16.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.465 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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