Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3H2-1-2UC found under by B And H Machine Inc. The National Stock Number assigned to this part is 5340006023086, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3H2-1-2UC.