Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 43958 found under Light Marker Aircra by Cooper Crouse Hinds Llc. The National Stock Number assigned to this part is 6210014337520, 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 43958.