The COMP Cams ID spring locator is a hardened steel spring seat with a 1.285" OD, .805" ID and .135" thickness that uses an inboard locating shoulder to center the seat and hold the spring. The 4678-style seat's 1.285" OD is noted as working well with COMP's 26918 beehive springs, providing a hardened locator solution for valve spring retention in compatible valvetrain assemblies.
COMP Cams ID Spring Locator 1.285in OD .805in ID, .135in Thickness