A fitting used with a union nut and thread piece to form a union.
NSN 6685-00-415-9695
NSN 5965-01-633-8849
NSN 6105-00-794-0255
NSN 5985-01-160-1252
NSN 5998-01-076-1886
NSN 6685-01-320-7010
NSN 6240-01-417-7978
NSN 5998-01-218-6412
NSN 5920-01-223-3734
NSN 6320-01-643-0850
NSN 6145-01-003-9741
NSN 5925-01-564-9684