Part Number: 145-501-9001

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CONDITION:
NS
BLANC AIRCRAFT FASTENERS INC0HBF7
M.S. AEROSPACE INC.0UCY9
HONEYWELL INTERNATIONAL INC.70210
ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO72599
SPS TECHNOLOGIES, LLC80539
HONEYWELL INTERNATIONAL INC.99193
ARCONIC GLOBAL FASTENERS & RINGS, INC.29372
PREECE INC DECCA VALVES DIV50276
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM
FASTENER LENGTH0.625 INCHES MINIMUM AND 0.672 INCHES MAXIMUM
HEAD STYLEHEXAGON
HEAD HEIGHT0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
HOLE DIAMETER0.156 INCHES NOMINAL
NOMINAL THREAD DIAMETER0.250 INCHES
GRIP LENGTH0.125 INCHES NOMINAL
HOLE QUANTITY1
HOLE TYPEDRILLED
FEATURES PROVIDEDFINISHED HEAD
THREAD QUANTITY PER INCH28
HOLE CONFIGURATION STYLEHEXAGON FLATS
MATERIALIRON ALLOY 651 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5721 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCHROMIUM OVERALL
THREAD SERIES DESIGNATORUNF
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 .19 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 . 15 inch ( . 38 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.