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 5965-01-555-8775
NSN 5920-00-259-7294
NSN 6645-00-527-6531
NSN 7035-00-275-5604
NSN 5935-01-573-6824
NSN 6320-00-098-2858
NSN 6685-01-341-3934
NSN 5920-01-501-0155
NSN 6135-01-593-5295
NSN 5960-01-553-4557
NSN 5985-01-093-3206
NSN 5965-01-479-8214