A fitting used with a union nut and thread piece to form a union.
NSN 5965-01-425-1347
NSN 5925-01-308-7858
NSN 6645-00-279-1777
NSN 6240-01-623-3798
NSN 6135-00-962-4111
NSN 5945-01-570-4858
NSN 5999-00-474-7704
NSN 5895-01-585-3624
NSN 5985-01-091-8349
NSN 5999-01-392-7840
NSN 5965-00-170-5254
NSN 6645-01-358-3219