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NSN: 4310-00-004-2540
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Part Numbers

Item Number Item Description
AA566 Compressor Unit, Rotary
MIL-C-19553A Compressor Unit, Rotary

Master Requirement Codes

Code Translation
AAXJ The percentage of time for which the item is designed to generate without degradation of rated capacity and discharge pressure.
AAXR The cooling medium used to maintain the required operating temperature of the compressor.
AAYS The speed of the compressor required to produce its rated capacity, expressed in revolutions per minute.
BDML Indicates the type of control device provided.
AAXP The design of the system necessary to maintain the required operating temperature of an item and discharge temperature of the compressed gases.
CQJY Indicates the type and amount of electrical flow at which the item is designed to operate, expressed in amperes.
AAYV The number of discharge connections included on the item.
AAYW Indicates the type of discharge connection included on the item.
AAXL The rated capacity of gas delivered by the last stage of compression.
AAXM The gage pressure of gas delivered by the last stage of compression. referred to as condensing pressure for refrigeration compressors.
AAXK The media the machine is designed to compress.
FREQ The cycles per second /hertz/ of the alternating current.
AAXG The number of compressors incorporated in the unit.
AAXX Indicates the type of mount utilized to support the item.
AAYT The number of intake connections included on the item.
AAYU Indicates the type of intake connection included on the item.
AAYB The mechanical action by which compression takes place.
AAZA Indicates a device used to eliminate the noise of the intake or discharge of the item.
FAAZ The number of alternating current phases.
AKDJ Indicates the type of prime mover included with the unit.
AAXS The cooling medium used to maintain the required operating temperature of the prime mover.
AAYD The number of stages incorporated in the item.
CSBH The total electrical voltage, expressed in volts, and the type of current whether alternating or direct.

AA566 Rotary Compressor Unit

Cage 81349

Technical Definition

Compressor Unit, Rotary, also referenced with federal logistics item name code 29303 - An assembled unit consisting of a commonly mounted rotary compressor(s) amd a prime mover(s). for items with additional equipment which extends the function of the item beyond the delivery of compressed air or gas, see pneumatic tool and compressor outfit, or other more specific names, as applicable. excludes auxiliary set, engine driven.

Technical Characteristics

Duty Cycle In Percent (AAXJ):
Compressor Cooling Medium (AAXR):
Fresh water
Compressor Speed At Rated Capacity In Rpm (AAYS):
Control Device Type (BDML):
Automatic start-stop
Cooling System Design (AAXP):
Current Type And Rating In Amps (CQJY):
31.8 ac
Discharge Connection Quantity (AAYV):
Discharge Connection Type (AAYW):
Round flange
Discharge Flow Rate (AAXL):
50.000 cubic feet per minute
Discharge Pressure (AAXM):
85.000 pounds per square inch gage
Gas For Which Designed (AAXK):
Frequency In Hertz (FREQ):
Compressor Quantity (AAXG):
Mounting Type (AAXX):
Intake Connection Quantity (AAYT):
Intake Connection Type (AAYU):
Round flange
Rotary Compressor Design (AAYB):
Liquid piston
Silencer Type (AAZA):
Phase (FAAZ):
Prime Mover Type (AKDJ):
Electric motor
Prime Mover Cooling Medium (AAXS):
Stage Quantity (AAYD):
Voltage In Volts And Current Type (CSBH):
440.0 ac

National Stock Number (NSN)