A round flexible sheet, which is part of the negative and positive pressure control valves. Its function is to form a tight seal over the adjusted circular openings in the control valves during part of the operating cycle.
NSN 6110-00-831-1509
NSN 5950-01-022-3145
NSN 5996-01-423-9423
NSN 5920-00-880-2433
NSN 6240-01-179-1189
NSN 7035-00-763-6180
NSN 6650-01-590-3670
NSN 6150-00-166-9044
NSN 5950-00-089-9620
NSN 5996-01-383-7018
NSN 6320-01-571-8974
NSN 5996-01-181-5438