  This paper presents 828 new 21 cm neutral hydrogen line measurements carried
out with the FORT receiver of the meridian transit Nan\c{c}ay radio telescope
(NRT) in the years 2000 -- 2007. This observational program was part of a
larger project aimed at collecting an exhaustive and magnitude-complete HI
extragalactic catalog for Tully-Fisher applications. Through five massive data
releases, the KLUN series has collected a homogeneous sample of 4876 HI-spectra
of spiral galaxies, complete down to a flux of 5 Jy.km.s^{-1} and with
declination delta > -40{\deg}. We publish here the last release of the KLUN HI
observational program, corresponding to the faint end of the survey, with HI
masses ranging from 5 10^8 to 5 10^{10} solar masses. The size of this final
sample is comparable to the catalogs based on the Arecibo and Parkes radio
telescope campaigns, and it allows general HI mass distribution studies from a
set of homogeneous radio measurements.
