A fitting used with a union nut and a tailpiece to form a union.
NSN 5975-00-221-7175
NSN 6135-01-445-6589
NSN 6145-01-602-7187
NSN 5975-01-237-2163
NSN 5925-00-492-2318
NSN 6610-00-481-1197
NSN 6620-01-007-8368
NSN 5925-00-234-0211
NSN 6110-01-229-8885
NSN 6145-00-286-9588
NSN 5905-00-309-7878
NSN 6685-00-796-1510