Used on 3/4in inverted vent check valve
NSN 5998-01-432-1596
NSN 5905-01-498-1079
NSN 5915-01-515-0156
NSN 6220-01-178-4652
NSN 5985-00-208-6751
NSN 6220-00-200-7888
NSN 5905-00-394-7194
NSN 5920-01-214-8430
NSN 7035-01-350-4247
NSN 5985-00-268-1396
NSN 6150-00-518-2743
NSN 5950-01-498-6962