What was found
MATERIAL USED TO PRODUCE A BYPASS DIAPHRAGM IS SUSPECT OF NONCONFORMANCE TO SPEC. FURTHER TESTING REVEALED THAT NONCONFORMING MATERIAL HAS BEEN SHIPPED TO MFG. THE DIAPHRAGM IS COMPOSED OF A NYLON REINFORCING MESH AND SYNTHETIC RUBBER. REQUIREMENTS IN QUESTION ARE DEFINED BY MFG MATERIAL SPEC ES-0612 FOR THE SYNTHETIC RUBBER AND SUPPLIER DISCLOSED THAT TENSILE AND ELONGATION PROPERTIES ARE LOWER THAN MINIMUM LIMITS. REQUIREMENTS ARE TENSILE 1100 - 1700 PSI AND ELONGATION 500 - 700 PERCENT.