Home / Home Improvement / Parts / Nailer O-Ring A00104 Nailer O-Ring A00104Price Not Available Price may not be up-to-date. Out of Stock View Product Part Number: A00104 Brand: PORTER CABLE CO Seller: Sears PartsDirect Categories: Home Improvement, Parts Possible Matches$8.94Fits Porter Cable A00104 Nailer o-Ring BN125 BN200 NS100 NS150 (1) $5.99A00104 Nailer O-Ring for Porter Cable BN125 BN200 NS100 NS150 BN125... Description This O-ring (part number A00104) is for nailers. Follow appropriate safety practices when installing O-ring A00104.