Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54489 found under Pin And Chain Assem by Fruehauf Corp. The National Stock Number assigned to this part is 2590003500639, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 54489.