Part Number 21640 having (CAGE Code 21640) and FSC 5330 Packing and Gasket Materials in stock with ready to ship. Get an instant quote for 21640 Seal Plain by Caci Nss Inc Dba Stratis Division Div Stratis. 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.