| APERTURE DIAMETER | 2.750 INCHES NOMINAL2.750 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER |
| CROSS-SECTIONAL THICKNESS | 0.175 INCHES NOMINAL0.175 INCHES NOMINAL |
| OUTSIDE DIAMETER | 4.375 INCHES NOMINAL4.375 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-21032 TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ASBESTOS AND STEEL CORROSION RESISTING OVERALL |
| STYLE DESIGNATOR | CIRCULAR |