# | = Pound | FIG | = Figure | O/H | = Overhaul |
° | = Degree | FIL | = Fillister | OD | = Outside Diameter |
2V | = Two Valve | FL | = Flared, Flat | OS | = Oversize |
4V | = Four Valve | FLEX | = Flexible | OVHL | = Overhaul |
A/R | = As Required | FT | = Feet | PRESS | = Pressure |
ADJ | = Adjustable | FRT | = Front | PT | = Point |
ADPTR | = Adaptor | GEN | = Generator | PT | = Pipe Thread |
ALUM | = Aluminum | GOV | = Governor | PTO | = Power Take-Off |
AMP | = Ampere | GSK | = Gasket | QTY | = Quantity |
APPROX | = Approximately | HD | = Head | RA | = Rocker Arm |
ASM | = Assembly | HDLS | = Headless | RAD | = Radiator |
ASSY | = Assembly | HE | = Heat Exchanger | RB | = Right Bank |
AVAIL | = Available | HEX | = Hexagon | RD | = Round |
B. C. | = Bolt Circle | HH | = High Horse | RED | = Reduction |
BAL | = Balancer | HL | = High Lift | REF | = Reference |
BATT | = Battery | HP | = Horsepower | RH | = Right Hand |
BR | = Brass | HSG | = Housing | ROT | = Rotation |
BRG | = Bearing | HT | = Height | RPM | = Revolutions Per Minute |
BRKT | = Bracket | HYD | = Hydraulic | RR | = Rear |
C/R | = Connecting Rod | ID | = Inside Diameter | SL | = Slotted |
C/S | = Crankshaft | IL | = Inline | SM | = Small |
CAD | = Cadmium | INCLS | = Includes | SPD | = Speed |
CCW | = Counter Clockwise | INJ | = Injector | SPL | = Special |
CER | = Ceramic | INSTR | = Instrument | STD | = Standard |
CFM | = Cubic Feet Per Minute | INT | = Internal | T | = Turbo |
CHRG | = Charging | INV | = Inverted | T/C | = Torque Converter |
CIB | = Cast Iron Block | L | = Length | TA | = Turbo Aftercooled |
CIR | = Cast Iron Ring | LB | = Left Bank | TAB | = Turbo Aftercooled Bypass |
COM | = Commercial | LH | = Left Hand | TACH | = Tachometer |
COMP | = Compressor | LIM | = Limiting | TEMP | = Temperature |
CONN | = Connections | LL | = Low Lift | THK | = Thick |
CTSK | = Countersunk | LS | = Limiting Speed | TI | = Turbo Intercooled |
CVR | = Cover | MAN | = Manifold | TIB | = Turbo Intercooled Bypass |
CW | = Clockwise | MAX | = Maximum | US | = Undersize |
CYL | = Cylinder | MECH | = Mechanical | V | = Volt |
DC | = Direct Current | MIN | = Minimum | V&S | = Valves & Springs |
DEV | = Developed | MM | = Millimeter | VARI | = Variable |
DIA | = Diameter | MO | = Moderate | VENT | = Ventilating |
DIST | = Distribution | MTD | = Mounted | VS | = Variable Speed |
DRV | = Drive, Driving | MTG | = Mounting | W/ | = With |
ENG | = Engine | NA | = Naturally Aspirated | W/O | = Without |
EXH | = Exhaust | NO | = Number | WBP | = Water Below Port |
EXPAN | = Expansion | NSS | = Not Sold Separately | X-HD | = Crosshead |
EXT | = External | O.S. | = Oversize | X-Head | = Crosshead |