| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.765 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| EXTERNAL KEY QUANTITY | 4 |
| EXTERNAL PREBENT KEY LENGTH | 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| HOLE DIAMETER | 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-327 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.025 INCHES NOMINAL |
| MATERIAL | ALUMINUM ALLOY OVERALL |
| OUTSIDE DIAMETER | 1.580 INCHES MINIMUM AND 1.610 INCHES MAXIMUM |