| CROSS-SECTIONAL SHAPE STYLE | SOLID SINGLE OR COMPOSITION |
| OUTSIDE DIAMETER | 2.984 INCHES NOMINAL |
| APERTURE DIAMETER | 2.562 INCHES NOMINAL |
| CROSS-SECTIONAL THICKNESS | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| MATERIAL | COTTON AND RUBBER SYNTHETIC OR ASBESTOS AND RUBBER SYNTHETIC OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | HH-P-171 FED SPEC 1ST MATERIAL RESPONSE OR AMS 3232 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| STYLE DESIGNATOR | CIRCULAR |