Part Number 512-637-20L having (CAGE Code 71724) and FSC 5330 Packing and Gasket Materials in stock with ready to ship. Get an instant quote for 512-637-20L Seal Plain Encased by John Crane Inc. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.