GLOSSARY (cont) TM 1-1520-238-T-10 GLOSSARY (cont) ABBR ABBR DEFINITION NFOV NO NO. NOE NOM NORM NS NSA NVS Ng Ni Np Np Nr OAS OAT OC OHMS OPR OPT ORIDE ORN ORT OUTBD OVERTEMP OVRD OVSP P P P DEFINITION narrow field of view normally open number nap of the earth nominal normal night sensor night sensor adjust night vision system engine turbine exhuast gas engine instrument engine turbine rotor rpm engine turbine rpm main rotor speed omni directional airspeed sensor outside air temperature overcurrent electrical resistance unit of measure operate optical override orange optical relay tube outboard overtemperature override overspeed pair plug pnvs P P&R P/O PAC PARA PEN PEU PHI PLRT PLT PM PM PMG PMP PNL PNVS PNVS/S POL POS POS POSN POT PRCK PRESS PRI PRIM PROG PS PSI PSI pressure pitch & roll part of pylon actuator controller paragraph penetration PNVS electronic unit PNVS high polarity pilot permament magnet power monitor permanent magnet generator pump panel pilot night vision sensor pilot night vision sensor/system polarity position positive position potentiometer pressure check pressure primary primary programmed pitch status pitch status in pounds per square inch Glossary-7