Shimano retaining ring.

– Suitable for Shimano Nexus 7 and Nexus 8 gear hubs.

Fit among others:
SG-5R30
SG-5R35
SG-7C30
SG-7R50
SG-8C31
SG-S501
SG-S700
SG-S705
SG-C3000-7R.
SG-C3000-7C.
SG-C6000-8R.
SG-C6000-8V.
SG-C6000-8D.
SG-C6000-8C.
SG-C6001-8R.
SG-C6001-8V.
SG-C6001-8D.
SG-C6010-8R.
SG-C6010-8V.
SG-C6060-8R.
SG-C6060-8V.
SG-C6060-8CD.
SG-C6061-8C.
SG-S7000-8
SG-C7001-8