Which Product Is Right For Me?
If your primary need is OEM pricing information on commercial aircraft spares, general aviation spares, and helicopter spares, the 'standard' Avref database is for you. This product will also include several hundred thousand cross-references, supersedures, and alternate part numbers.
If you need the manufacturer pricing and as many cross-references as you can get your hands on, then you need the Avref +MCRL product. Adding the MCRL data to the standard Avref database provides you with several hundred of thousand additional cross-references including AN to MS to NAS, etc. The cross-references contained in the Avref +MCRL product can be extremely useful even if you do not work with military spares or large aircraft.
Plus, with the Avref +MCRL product you have access to over 60 million records from the U.S. government MCRL, CAGE, Characteristics, Management, and Contract History databases.
If you have the need for aircraft OEM pricing, national stock numbers, gov't procurement pricing, and other military related items, then you absolutely should order the Avref +MCRL product.
If you do not need aircraft OEM pricing information, but need access to national stock numbers, CAGE codes, gov't MCRL cross-references, and procurement pricing then the National Stock Number Database is what you need.
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