A fitting used with a union nut and a tailpiece to form a union.
NSN 6240-00-677-0305
NSN 5985-00-003-6111
NSN 6220-01-077-3461
NSN 5975-00-541-8531
NSN 6240-01-273-0193
NSN 6685-00-229-7350
NSN 5990-01-553-6859
NSN 6645-01-122-5965
NSN 6220-01-618-7446
NSN 6145-01-512-8688
NSN 7035-00-433-5670
NSN 5965-01-471-1614