For navy nuclear propulsion plant products only. As differentiated by free from mercury contamination
A fitting used with a union nut and thread piece to form a union.
NSN 6135-01-385-7276
NSN 5930-01-083-9453
NSN 5945-00-144-0071
NSN 6220-00-425-1293
NSN 5990-01-378-7349
NSN 5945-01-253-4299
NSN 7035-01-501-9118
NSN 5930-01-146-4489
NSN 5950-01-594-6456
NSN 6650-01-363-9043
NSN 5835-00-647-2104
NSN 5920-01-080-1441