View cart “591-06 Lock Screw” has been added to your cart. 591-01 Retaining Ring$14.95 591-01 Retaining Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Retaining Ring Related products 591-01-1 Air Cap Clip $2.95 Add to cart 591-43 Trigger $6.50 Add to cart 591-42 Retaining Ring $3.50 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart