A fitting used with a union nut and thread piece to form a union.
NSN 6135-00-519-1325
NSN 6135-01-329-7994
NSN 5975-00-583-8625
NSN 5930-01-032-9888
NSN 5999-00-190-9995
NSN 5985-01-056-8814
NSN 5925-01-307-7762
NSN 6650-01-399-8552
NSN 6320-01-183-8196
NSN 5915-01-093-1613
NSN 6135-01-322-4655
NSN 5945-01-387-6513