Quick view Add to Cart Overhaul Instructions with Parts Breakdown for Hydraulic Pressure Switch Assembly - Model YMBN Document Part Number: NAVAER 03-10-629 Number of pages: 4Part Number: NAVAER 03-10-629Revision Date: 1-July-1957Description: Mfg BY: Westport Development - Grumman MSRP: Was: Now: $15.00