A fitting used with a union nut and thread piece to form a union.
NSN 5930-01-519-1291
NSN 5855-00-999-9147
NSN 6110-01-217-8817
NSN 5996-01-100-2377
NSN 5965-01-255-8691
NSN 5930-01-022-8398
NSN 5960-00-428-3679
NSN 6145-01-603-1659
NSN 5910-01-097-3595
NSN 5985-01-369-2038
NSN 6240-01-609-4774
NSN 6135-00-284-1406