Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BHGD21T-24-B W-S257 found under Indicator Fault Locating by Minelco Inc. The National Stock Number assigned to this part is 6625000414950, 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 BHGD21T-24-B W-S257.