Use as a replacement part for 3M™ Full Face Reusable Respirator 6000 Series*. Use to secure 3M™ Lens Assembly 6898 to facepiece Does not include lens Use to secure 3M Lens assembly 6898 (sold separately) to facepiece Replacement part can extend service life of facepiece Using this replacement part can extend the service life of your 3M™ Full Face Reusable Respiratory protection equiment. *3M™ Full Face Reusable Respirator 6000 Series sold separately