what does mass=4.9808212e+00 pound mean, how many lbs is it

It means someone doesn't know that pounds are a unit of weight, not
mass.  Or they used a common, though incorrect shorthand and used mass
as a colloquialism.

4.9808212e+00 is scientific notation for 4.9808212 x 10 to the zeroeth
power.  10 to the 0 is 1, so it is the same as 4.9808212 x 1 or
4.9808212.

I believe that the person who wrote that intended to say something was
about 5 pounds.

By the way, I wasn't intending any offense by the first sentence
above, to the asker, or the person who originally wrote that.  In the
general population mass and weight are sometimes used interchangeably
even though they are very different concepts.  :)

There is a difference between pound mass and pound weight.  Just a friendly comment.

VOLUME =  5.1305016e+01  INCH^3
SURFACE AREA =  2.2406771e+02  INCH^2
DENSITY =  9.7000000e-02 POUND / INCH^3
MASS =  4.9765865e+00 POUND 

CENTER OF GRAVITY with respect to _7398531-04 coordinate frame:
X   Y   Z     1.6110034e+01  1.8626773e+00  =  4.9765865e+00 POUND
(this was given as a model analysis)not that i don't know lbs from
mass

It is my opinion, from the context you have provided:

VOLUME =  5.1305016e+01  INCH^3
SURFACE AREA =  2.2406771e+02  INCH^2
DENSITY =  9.7000000e-02 POUND / INCH^3
MASS =  4.9765865e+00 POUND
 
That mass is POUND MASS and not pound weight.  I say this because
density is defined as the amount of mass in unit volume.  Therefore
your unit mass is pound.