| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 1.247 INCHES MINIMUM AND 1.257 INCHES MAXIMUM |
| EXTERNAL STRAIGHT KEY WIDTH | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| EXTERNAL KEY QUANTITY | 4 |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 2.810 INCHES MINIMUM AND 2.830 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 2 |
| INTERNAL STRAIGHT KEY WIDTH | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| OUTSIDE DIAMETER | 3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 3.500 INCHES MINIMUM AND 3.580 INCHES MAXIMUM |
| SPECIAL FEATURES | INTERNAL KEYS 180 DEG APART OFFSET 16 DEG 22 MIN FROM CENTER LINE OF EXTERNAL KEYS |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT | ZINC AND PHOSPHATE OVERALL |