Seat is monel with a carbon center and fire safe
A device which acts as a stem guide and provides a seating surface for a valve, poppet, hull drain.
NSN 6650-01-014-0931
NSN 6110-01-072-7883
NSN 5960-01-142-1995
NSN 6645-00-198-8450
NSN 5999-01-576-9958
NSN 6610-00-337-5483
NSN 6645-01-467-9983
NSN 6220-01-423-7517
NSN 5998-00-332-9558
NSN 6620-01-549-6653
NSN 5975-00-864-8232
NSN 6135-00-461-3590