Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1-037-1149 found under Head Sprinkler Fire Protection by Chemetron Fire Systems. The National Stock Number assigned to this part is 4210015147475, and the Federal Supply Class is 4210 Firefighting Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1-037-1149.