LSH Keystone Module, SM, OS2 APC, (green), pure white (similar to RAL 9010), - for mounting adapter KMK-MA Up rw/sw and other installation adapters, - slotted ceramic sleeve, - with dust protection caps, - in accordance with the following standard requirements:, - ISO 61754-15, - SM APC, Grade B, - service life > 1000 mating cycles