| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM |
| HOLE DIAMETER | 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM |
| INTERNAL PREBENT KEY ANGLE | 90.0 DEGREES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| OUTSIDE DIAMETER | 6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |