Used on periscope universal hull packing. 7.488" center hole diameter spring loaded deep polypak 8-32 unc-3b screws 4; seal ring width is a min of 0.243" & a max of 0.245"
1.9800" outside diameter expanding concentric ring style part name assigned by controlling agency - plate, wear-air inlet seal; hardness 1/4 hard; 0.030 inch slit joint
Used on steam valve assy-aircraft carrier catapult system / 4r/5r cog items managed by braso. navy: packing, high temperature steam pressure of 1000.0 psi; packing to be furnished in continuous strips, coiled on spools or reels; next higher assy is steam valve assy, ai
