W/socket 0.500 in. By 0.375 in. Ips
A fitting used with a union nut and a tailpiece to form a union.
NSN 5996-01-134-7638
NSN 5960-01-446-4446
NSN 5945-00-010-8336
NSN 6320-00-270-8222
NSN 4140-01-257-6571
NSN 6135-00-448-5642
NSN 5895-00-926-2633
NSN 6145-01-386-3718
NSN 4140-00-100-4563
NSN 6610-00-684-7683
NSN 5910-01-519-2308
NSN 6645-01-029-4525