1、SAE ARP*3bBC 72 83573LIO 0027571 B fi- 3 5-17 Major Diameter Pitch Diameter Minor Diameter Ring “GO“ Gage , SIZE min max min max min max +.O000 -.O005 18-1.5MM .7009 .7069 .6635 .6685 .6320 .6320 14-1.25MM .5410 .5460 .5117 .5159 .4858 .4858 ARP 368C Issued 9-1-46 P RACTI CE AEROSPACE RECOMMENDED oc
2、iety of Automotive Engineers, Inc. NO PENNSYLVANIA PLAZA NEW YORK. N Y 10001 SPARK PLUG THREAD FORM DATA (60 THREAD ANGLE) i f 2 B Y 4 9 b (3 z a SAE ARP*3bdC 72 W 83573qO 0027572 T W SIZE MAJOR DIAMETER PITCH DIAMETER MINOR DIAMETER MIN, MAX. MIN. MAX. MIN. MAX. 18- 1.5MM .7 I02 .6703 ,6753 .6404 8
3、467 14- 1.25MM 5525 .5192 5235 A944 .4997 ARP 368C I PLUG “GO GAG t.0005 -.O000 .7 I02 S525 -2- THREAD HOLE DIMENSIONS / I2O0 D THREADED HOLE COUNTERBORE THE DATA ON THREADED HOLES ARE SHOWN ONLY AS A GUIDE FOR THE DESIGNERS AND ARE NOT TO BE CONSIDERED AS AN ATTEMPT TO STANDARDIZE SPARK PWG HOLE SIZES, TOLERANCES ON FINISHED DIMENSIONS f.O1O UNLESS OTHERWISE SPECIFIED. TOLERANCES ON ANGLES f2O UNLESS OTHERWLSE SPECIFIED. i PREPARED BY Aircraft Piston Engine Ignition Subcommittee of SAE COMMITTEE E-30, IGNITION RESEARCH
