Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIL-R-15917-IV-BR-MILGP IT NO 44 found under Seal Plain Encased by Reelcraft Industries Inc. The National Stock Number assigned to this part is 5330016111050, 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 MIL-R-15917-IV-BR-MILGP IT NO 44.