Specifications include, but are not limited to: 1. Gallery IV Passenger Car 16 inch Composite 33 inch* 26C GB-5 2. MP36PH-3C Locomotive 14 inch Composite 40 inch* 26L Standard *All wheels are Class B, Wide Flange with a 1:20 Profile. 1. The brake shoes shall comply with AAR Standard RP-599, High Friction Composition for Locomotives. 2. The brake shoes shall have contours representative of wheel diameters and shall not crack during operation. 3. The locomotive brake shoes shall be 14-inch composition shoes that fit an Electro-Motive Diesel (EMD) brake head assembly, Part Number 8388332. 4. The passenger car brake shoes shall be 16-inch composition shoes that fit a Wabtec GB5 Tread Brake Unit. 5. The brake shoes shall have a witness groove, where applicable, that denotes the minimum wear limit. 6. The brake shoes shall contain no lead, asbestos or any other harmful material. 7. The brake shoes shall not: a. Crumble, split or otherwise become unusable while in storage or normal service; b. Require special handling or storage prior to use; and c. Cause excessive wear to wheel treads or cause wheels to crack from overheating.