Part Number
Part Number:
NSN:
NIIN:
Item Name:
INDICATOR , RATIO , ENGINE PRESSURE
Definition:
AN INSTRUMENT DESIGNED TO REFLECT ONE OF THE TESTING PARAMETERS FOR CONDUCTING ENGINE PERFORMANCE AND FUNCTIONAL TESTING IN AN OPERATING ENGINE SYSTEM. ITS DIAL IS GRADUATED IN UNITS OF PRESSURE RATIO, AND IS USED TO INDICATE THE PERCENT OF DIFFERENTIAL PRESSURE RATIO OF EXHAUST GAS PRESSURE TO INTAKE (ENGINE INLET) PRESSURE FOR GAS TURBINE OR JET PROPULSION ENGINES.
CAGE Information
| Code | Company |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
Federal Supply Class
Title
ENGINE INSTRUMENTS
Inclusions:
INCLUDES ALL ENGINE INSTRUMENTS, INCLUDING AIRCRAFT, MARINE, AND VEHICULAR; FUEL PRESSURE GAGES; MANIFOLD PRESSURE GAGES; OIL PRESSURE GAGES; FUEL MIXTURE INDICATORS; ENGINE OIL AND FUEL WARNING DEVICES.
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ACYN | AC VOLTAGE RATING | 26.0 VOLTS NOMINAL |
| APSK | SCALE RANGE | +1.2/+3.4 PRESSURE RATIO SINGLE INDICATOR SINGLE SCALE |
| ABRY | LENGTH | 4.400 INCHES NOMINAL |
| AMNL | PRESENTATION TYPE | DIAL |
| AFRA | CONTACT QUANTITY | 8 |
| ASKN | INDIVIDUAL MARKING | PRESSURE RATIO |
| ACYR | DC VOLTAGE RATING | 26.0 VOLTS NOMINAL |
| ACZB | FREQUENCY RATING | 400.0 HERTZ NOMINAL |
| ASKX | ELECTRICAL CONNECTION QUANTITY | 1 |
| AKSF | CONTACT TYPE | PIN |
| ASST | POINTER TYPE | INDICATING SINGLE POINTER |
| ABMZ | DIAMETER | 2.000 INCHES NOMINAL |
| ACDC | CURRENT TYPE | AC |
| AWHH | ILLUMINATION COLOR GENERATION METHOD | FLUORESCENCE |
| FEAT | SPECIAL FEATURES | CONTAINS 2 SYNCHRO RECEIVERS, A MAIN DIAL POINTER AND A SUBDIAL POINTER; INCLUDES SUBDIAL; NO LIGHTING, ACCURACY +/-0.001 EPR WITH SUBDIAL |
| FAAZ | PHASE | SINGLE |
| ASKZ | ELECTRICAL CONNECTION IDENTIFYING NUMBER | AND10066-20-7P |