540-2 Oxygen Brass Nut(0)No Reviews yet $5.00 Quantity discounts available QuantityPrice SKU: 540-2 Quantity -+ Add to Cart Details Nut, Oxygen, CGA540 (540-2) O2 CGA 540 Brass Nut for use with part #540-3 O2 Brass Nipple. Specifications PSI:: 2400 Includes:Brass CGA540 Nut DetailsSpecifications Back Nut, Oxygen, CGA540 (540-2) O2 CGA 540 Brass Nut for use with part #540-3 O2 Brass Nipple. Back PSI:: 2400Includes:Brass CGA540 Nut Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review