Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SIKA291BF.32-212GRD F.L1-40 found under Thermometer Self Indicating by Krupp Mak Co. The National Stock Number assigned to this part is 6685013494020, 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 SIKA291BF.32-212GRD F.L1-40.