Retaining Rings/Internal/C-Type

MISUMI

[Specification Change] The material of stainless steel products will be changed sequentially starting in July 2025. Please see here for details.
There is a possibility that products and packages before and after the change may be mixed in the same shipment, but there will be no problems with use.
Please check the content on our website as the PDF does not contain the most up-to-date information.

[Features]·A C-type retaining ring, internal. ·The unit of purchase is loose (available in quantities of 1 pc.). ·The retaining ring type is an inner ring retaining ring.

RTWN
RTWS(Stainless Steel)

Applicable Hole

d₄: Minimum circumferential diameter when a retaining ring is fitted inside d₁
(Clearance I.D.)

Type	[M] Material	[H] Hardness	[S] Surface Treatment
RTWN	Spring Steel	44 to 53HRC	Phosphate coating
RTWS	SUS304-CSP Equivalent	36 to 44HRC	-