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:
Materials: cover: aluminum allow; cover, bayonet pins: stainless steel, passivated; disk (gasket): silicone elastomer; fasteners: stainless steel, passivated; ring: stainless steel, passivated, 0.76 mm, thickness; rope: 7 strand stainless steel, passivated; connectors, electrical circular, cover, protective, receptacle, mil-dtl-26482 series 1 and 2, bayonet coupling