| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.016 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| HOLE DIAMETER | 0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 1/2 H FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.024 INCHES MINIMUM AND 0.025 INCHES MAXIMUM |
| MATERIAL | COPPER ALLOY 268 OVERALL |
| OUTSIDE DIAMETER | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.400 INCHES NOMINAL |
| STYLE DESIGNATOR | KEY |