target reference number

lay reference number

reference number (order / message / report)

attitude-and-heading reference system / attitude and heading reference system (AHRS)

target number

target reference point (TRP)

reference target

target scattering crossover / target scattering cross-section / electronic target profile

code number

despatch number

equipment component number (ECN)

lot number

Mach / Mach number

national stock number

NATO stock number (NSN)

registration / identification number

series number

service number

sheet name / number

main gun (cannon) number

NSN / NATO Stock Number

task identification number (ID)

rammer number

ballistic group number

breech number

cetane number in border line

chemical octane number

flight Mach number

acid number

base number

bromine number

cetane number

iodine number