tking008

i searched but didn't seem to find an answer to my question anywhere on here so i'll ask it instead......we have a 2006chevy silverado 2500HD w/ the windshield washer sprayers on the arms not on the hood.....i went to use them today to clean the windshield and noticed that the passenger side nozzle wasn't spraying, but the fluid just ran down the window in a stream...so i looked and the little plastic sprayer nozzle is completely gone to make it spray....do i have to replace the whole wiper arm or where can i find just that plastic nozzle? i've looked at parts online and can't find such part or maybe i just don't know the "technical name for it"....anyways...any info would be much appreciated....thanks in advance..