Since you mentioned 40MHz, I assume that you are intending to use the resonator with a PIC18. With PIC18s, you can use 40MHz only in EC mode (external oscillator - not crystal or resonator). However, by using a 10MHz resonator (or crystal) in HS mode you can achieve a 40MHz clock by using the 4x PLL. In which case, one these will work:
http://search.digikey.com/scripts/Dk...me=490-1213-ND

Note: the "K" series will support up to 64MHz clock (and the PIC18s with USB, 48Mhz).