Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 505-0-9-157-101 found under Wireelectrical by Drs Environmental Systems Inc. The National Stock Number assigned to this part is 6145016965774, and the Federal Supply Class is 6145 Wire And Cable Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 505-0-9-157-101.