| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4640 AEROSPACE MATERIAL SPEC STD 1ST MATERIAL RESPONSE OR AMS4880 AEROSPACE MATERIAL SPEC STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 617-CANCELED OR COPPER ALLOY 630 OVERALL |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | ITEM IS FAA CERTIFIED |
| STYLE DESIGNATOR | SOLID, EXTERNAL FLANGE ONE END |
| SURFACE TREATMENT | CADMIUM EXTERNAL CYLINDRICAL SURFACE |