A fitting used with a union nut and thread piece to form a union.
NSN 5998-01-044-5816
NSN 5895-01-464-8736
NSN 6320-00-857-4073
NSN 5985-01-076-5094
NSN 5998-01-659-7382
NSN 5965-01-607-0353
NSN 5945-01-389-7345
NSN 5925-00-655-1409
NSN 4140-00-895-3417
NSN 6220-01-577-3999
NSN 5960-01-323-6432
NSN 5910-00-782-8147