Quick view Add to Cart Operation, Service, Overhaul Instructions with Parts for Two Way Oil Check Valve - SP-12-2247-4, and Two Way Fuel Check Valve - SP-12-2247-5 Document Part Number: NAVAER 03-15-540 Number of pages: 8Part Number: NAVAER 03-15-540Revision Date: 15-Feb-1949Description: Mfg By: Parker MSRP: Was: Now: $15.00