Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 804-8533843 PC-8 SHT NO-5 found under O Ring by Premier Copper Division Of W And O. The National Stock Number assigned to this part is 5331001675124, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 804-8533843 PC-8 SHT NO-5.