I am specifically looking for a 10mm x 21mm x 5mm 6801-2RS bearing

Hello, I am needing to purchase a minimum of 4 bearings, max of 10 bearings for this bearing. I am specifically looking for a 10mm x 21mm x 5mm and this is showing those specs, but when I look up the part number elsewhere on the internet, the 6801-2RS is showing specs of 12mm x 21mm x 5mm. I need to know if the bearings you have actually measure out to the specs listed on this site. After physical verification, I will look to purchase.
CRBS 1108 V UU
3875/3821/X1S-3875/Y1S-3821
IR 12X15X12,5
SD24B2X2500
QVPX16V075ST
RNA 6906
QVVC26V110SET
7416 CBM
QVVF16V070SM
4367
22332 CC/C4W33
LFS120OLRB
NU 2234 ECMA/C3
QAP20A315SM
TGY1112KRRBW
99550-90181