Adding an “N” to the end of the part
number indicates that notches are to be added to the side
walls of the PTFE cap. Notches can help optimize the seal’s
response to fluid pressure. In application, the void created by
the notch allows fluid pressure to fill the cavity between the
side face of the gland and the seal.
Consult your local Zatkoff Seals & Packings representative
for the availability and cost to
add side notches to the CQ profile.