A fitting used with a union nut and a tailpiece to form a union.
NSN 5950-01-171-2796
NSN 5835-01-293-6453
NSN 6130-01-011-8173
NSN 6130-00-082-2633
NSN 6150-00-522-4909
NSN 5930-01-094-7222
NSN 6685-01-263-5266
NSN 6135-00-182-7008
NSN 5855-01-286-9928
NSN 6220-01-534-3965
NSN 6135-01-139-1700
NSN 6150-00-210-4131