Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS-164 ITEM 3 found under Valve Float Arm by Val Matic Valve And Manufacturing. The National Stock Number assigned to this part is 4820016053251, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SS-164 ITEM 3.