S 15X21X3 VG NBR
seal.
15X21X3
Catalog #1: https://ecatalog.fst.com/seals/all/radial-shaft-seals/waok/67022057/dichtomatik-rotary-shaft-seal-without-spring-waok---rubber-encased-out-surface-grooved-od-70-nbr-nb703413-green-15-x-21-x-3-mm/?categorypage=25