Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2349WINST 1 found under Oxygen Concentrator Assembly by Honeywell Aerospace. The National Stock Number assigned to this part is 1660990878976, 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 2349WINST 1.