6850-01-382-9143 (PFK-604-S9 BLUE STREAK II)
6850-01-382-9143 is equivalent to manufacture part number 50-55 LB BOX-PFK-400-S9 BLUE ST-. It is a chemical coating and is classified under Federal Supply Class 6850 (6850 - Chemical Specialties), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 6850 - Chemical Specialties and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.