Quick view Add to Cart Overhaul Instructions with Parts Breakdown for Tubeaxial Fan - Part M4381B-1B1 with Motor M311A Document Part Number: NAVAER 03-70D-522 Number of pages: 4Part Number: NAVAER 03-70D-522Revision Date: 1-Oct-1957Description: Mfg By: Dynamic Air MSRP: Was: Now: $15.00