Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 335423 found under Tungstn Halogn Lam by Thermo Environmental Instruments. The National Stock Number assigned to this part is 6210015284832, and the Federal Supply Class is 6210 Indoor And Outdoor Electrical Lighting Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 335423.