A fitting used with a union nut and thread piece to form a union.
NSN 5835-01-062-2235
NSN 6105-00-527-7702
NSN 6220-01-172-3620
NSN 5975-01-508-8049
NSN 5920-00-504-8634
NSN 5895-01-535-7082
NSN 6320-01-154-1099
NSN 5965-01-538-0698
NSN 5998-01-026-8443
NSN 5998-01-252-6457
NSN 5990-01-213-6319
NSN 6685-01-303-9528