A fitting used with a union nut and thread piece to form a union.
NSN 6105-01-358-4035
NSN 5985-01-489-1155
NSN 5950-01-482-0910
NSN 5965-01-021-7023
NSN 5905-01-403-2806
NSN 6240-00-156-1607
NSN 6685-01-206-4474
NSN 6145-00-295-1306
NSN 5965-00-529-0602
NSN 6135-01-359-4293
NSN 6220-00-998-3476
NSN 6220-01-420-7812