Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2553-4GR2 found under Contact Assembly Electrical by P M Industries Inc. The National Stock Number assigned to this part is 5999005043937, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2553-4GR2.