| CROSS SECTION INSIDE DIAMETER | 0.376 INCHES NOMINAL |
| CROSS SECTION OUTSIDE DIAMETER | 0.500 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | CIRCULAR W/ CENTER APERTURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-1149, TYPE 1, CLASS 3-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| MATERIAL | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR LOCATION NOT OTHERWISE SPECIFIED |
| NONDEFINITIVE SPEC/STD DATA | 2 CLASS AND 60 GRADE |
| NONMETALLIC HARDNESS RATING | 60.0 NOMINAL SHORE DUROMETER A |
| SURFACE CONDITION | SMOOTH BOTH SIDES |