You are buy a set of 10 New Old Stock Friction Discs for the DP hydraulic brake system for DP recovery winches for some rated 20K-100K lbs winches.  DP part numbers 3158 and 11603.  There may be some oxidation, cosmetic damage and warehouse crud.  Sold "as is".  Shipping is 2 lbs at buyer's expense.  Similar NSN part number 2530-01-251-5296

***Steel Discs available***