MRC:
Markings included on an item for the purpose of offering instructions or warnings or to indicate the purpose,function,or application of the item.excludes manufacturers part numbers,symbols,or the like.MARK
Special Markings:
Terminals on top of board marked r201, cr201, 20, cr203, cr204, cr202, 40, cr205, 15, cr206, r215, r214, 35, r202, r203, 10, r213, r212, r211, 30, r210, r208, 5, r209, r206, r207, 25, r205, 1, r204, terminals on bottom of board marked 43, 20, 40, 17, 37, 14, 11, 32, 29, 6, 3, 23, board marked tb210
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Mil-f-14072, -221 military specification single treatment response terminals