Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 251 00 1000000HM found under Resistor Variable Nonwire Wound Nonprecision by Trw Inc. The National Stock Number assigned to this part is 5905004100803, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 251 00 1000000HM.