MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Small; lightweight; ultra-portable; internal battery or line operated; 120 volt, 60 hz, ac, or 220 volt, 50/60 hz, ac, or 10-32 volt, dc; includes: expansion module, recorder, capnography measurement device, pulse oximeter, and remote interface unit; requirements for essential characteristics for fixed wing aircraft and rotary wing aircraft have been combined and a joint air certification (jac) has been provided
MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Used for patient monitoring, emergency land and air transport, operating room facility, and interdepartmental transport; capable of monitoring ecg, heart rate, non-invasive and invasive blood pressure, pulse, temperature; displays selected parameters on el screen and strip chart recorder