Provides protection from flooding through the real seal; ceramic
NSN 6685-01-418-0925
NSN 6320-00-546-9249
NSN 6240-00-218-1480
NSN 5855-01-147-4785
NSN 6105-01-447-2984
NSN 6620-00-159-0866
NSN 5998-01-338-8102
NSN 6685-01-396-7599
NSN 6110-01-042-0510
NSN 5905-01-026-2161
NSN 6650-01-132-2697
NSN 6105-01-061-6572