FED-STD-143A (NOTICE 1), FEDERAL STANDARD: SPARK PLUG; HEAT RATING OF, METHOD OF CLASSIFYING (04 APR 2001) [S/S BY SAE-J2162]
FED-STD-143A (NOTICE 1), FEDERAL STANDARD: SPARK PLUG; HEAT RATING OF, METHOD OF CLASSIFYING (04 APR 2001) [S/S BY SAE-J2162]., FED-STD-143A, dated August 9, 1960, is hereby canceled. The preparing activity for this document has determined that SAE J2162, "Spark Plug Heat Rating Classifications" may be used for future procurements.