Jeśli twoje tabele faktycznie składają się z None i NA, spróbuj tego :
ALTER PROCEDURE spvec
AS
SELECT Row_number() OVER (ORDER BY (SELECT 1)) AS 'RNumber'
,vf.*
FROM LOGIN ld
,vehicle vf
WHERE (ld.fid = cast(vf.fid as varchar(max)))
AND cast(ld.id as varchar(2)) <> 'NA'
AND cast(vf.CustID as varchar(4)) <> 'None'
AND cast(vf.Simo as varchar(4)) <> 'None'
ORDER BY Row_number() OVER (ORDER BY (SELECT 1))