View cart “591-24A Replacement Needle Bushing Assembly” 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 591-32 Air Connector $9.95 Add to cart 591-06 Lock Screw $12.50 Add to cart 591-43 Trigger $6.50 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart