MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Fitting material coating: cr (vi) free, seal material: fluorocarbon fkn, seal type: eolastic seal, male parallel thread 16 x 1.5, male stud bsp thread g3/8a
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Bsp.Tr int head, internal