Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 830 .37IN ITEM found under Gasket Spiral Wound by Anvil Industries Inc. The National Stock Number assigned to this part is 5330013347315, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 830 .37IN ITEM.