Washer: Carbon steel SAE 1008 (1.0330)
Stainless steel AISI 304 (1.4301)
Surface protection Zinc plated washer: carbon (Cr VI free) steel
Temperature NBR: -30°C to +100°C
Good chemical resistance to mineral oils and greases, hydraulic oils H, HL, HLP, flame-resistant hydraulic fluids HFA, HFB, HFC up to approx. +50°C and water up to max. +80°C.
By tightening the screws the elastomer sealing lip is compressed, thereby producing the sealing effect on the surfaces to be sealed. It stops the medium from leaking to the outside, thus preventing loss of pressure. In addition, it provides protection against dirt from the outside.
The centring feature of the USS type ensures that the bonded seal is fixed in the correct position for mounting and when tightening the screws, thereby guaranteeing captive mounting.