All parts are stamped with the exact same serial number, indicating that they're all original to the rifle.
add on
Usually caliber and/or serial numbers.
Most of the numbers are the serial number.
It means the vehicle has the original motor and transmission.
I think you are talking about the nation rifle association? In which case, you mean the NRA.
"All numbers matching" in reference to some firearms (such as a German manufactured Luger) means that the majority of the parts are marked with the same serial number, indicating that they are all the original parts for that firearm. In the case of the M1 Garand, the various numbers on different parts are the blueprint numbers for those particular parts. These blueprint numbers changed during the many upgrades of the M-1 rifle during its long production run of 1936-1956. For a Garand to be original and authentic, these numbers would have to be correct for the year of manufacture of that rifle serial number. In that a large number of the Garands available on the market were reconditioned by the US arsenals following service and brought up to the latest specifications (meaning that all parts were replaced with the latest designs) the numbers are rarely correct for original manufacture, but are just fine for a functioning rifle. I hope this clarifies the situation you are facing.
The Engine Serial Numbers Must Match The Serial Numbers on the ID Plate of the car......... Also the transmission and differential are serial numbered as well as the engine. The numbers matching refers to those numbers matching the original build sheet on that particular car.
It means that you are talking about numbers that have more than one digit.
What numbers do you mean? If you mean the numbers in a ship's name, they are similar to an ISBN number or an I.D number - each ship has different ones. If that's not what you were talking about, sorry.
they can refer to year adopted, case length, bullet diameter, etc..
The grain numbers on ammunition are the projectiles weight in grains, at 7000 grains to a pound equals 437.5 grains to an ounce.
Used to keep the parts identified for assembley.For gun collectors, it means that all of the parts that were originally assembled on the gun are still on the gun. A mismatched serial number means that the part with the non-matching number has been replaced, and may not fit correctly. Guns with matching numbers are more valuable to collectors.