OR 005(OP) O-Ring Ref : OR 005(OP) Material: Aluminium Alloy Finish: Natural Silver / Colored Anodized Net weight: 65 gms±5 gms (0.143 lbs) Process: Forged Minimum Breaking Strength: 23 kN (5000 lbs)(when tested as per ANSI Z 359.12-2009)