A fitting used with a union nut and thread piece to form a union.
NSN 5965-01-490-6704
NSN 5855-01-566-7431
NSN 6220-00-944-4512
NSN 5975-00-753-6864
NSN 5935-01-268-3396
NSN 5999-01-612-8629
NSN 5998-01-421-4567
NSN 5835-01-431-2178
NSN 6610-01-393-5475
NSN 5925-00-275-7599
NSN 5930-01-529-8638
NSN 5975-00-767-0976