general purpose metal case single ptfe single lip solid ptfe rotary shaft seal s parker oil seal reduced friction u cups part 25005000 allegheny york dual lip solid ptfe rotary shaft seal tcf parker oil seal reduced friction jm clipper split nbr id 19 000 od 21 large diameter rotary shaft v seal rod seal prädifa series bs ultrathan outside lip metal case rotary seals for rod seals parkerin standard polypak hydraulic seal with split clipper oil seal parker na rotary shaft seals parker na tn parker oil seal reduced friction comoso parker oil seals rod seal prädifa series bai flexiseal ptfe lip seal o ring od series 300 parker shaft sleeves parker wear limpiador 4615 h parker h id 1 937 spring energized seals east texas parker o ring handbook pdf promo lip seal shaft parker commercial rotary shaft clipper oil seal complete piston with integrated seals head seal prädifa series nla flexiseal parker oil seals rotary shaft esp u cups part 25005500 562b allegheny ptfe lip seal o ring od series 100 parker advanced sealing solution lip seals parker na