The Ashcroft type 200 diaphragm instrument seal 1/2" NPT hastelloy 50 200H 04T f is a seal/gasket from Ashcroft. It creates a barrier between mating surfaces or around a shaft to prevent the leakage of fluid, gas, or contaminants. Key specifications noted on this listing include NPT. It is commonly in machine housings, flanges, and rotating shaft seals.
