A fitting used with a union nut and thread piece to form a union.
NSN 6610-00-243-6499
NSN 5920-01-451-2144
NSN 6240-01-657-2378
NSN 5895-01-569-8083
NSN 6130-01-195-7626
NSN 6150-01-437-5552
NSN 5999-01-142-2090
NSN 6685-00-759-4097
NSN 5985-01-513-4983
NSN 5930-01-608-4216
NSN 5930-01-582-6435
NSN 6135-01-190-2628