A fitting used with a union nut and a tailpiece to form a union.
NSN 5915-01-500-2147
NSN 6650-01-569-3286
NSN 5998-01-526-9342
NSN 6145-00-990-9700
NSN 5920-01-176-0024
NSN 5975-00-714-8031
NSN 5950-01-157-8425
NSN 5925-01-224-4519
NSN 5895-01-440-9847
NSN 5895-01-446-6066
NSN 6240-01-531-1012
NSN 5905-01-013-9558