Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TSI-1000-5-22 found under Pyrometer Indicating by Philadelphia Scientific Controls Inc. The National Stock Number assigned to this part is 6685010180079, 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 TSI-1000-5-22.