| APERTURE DIAMETER | 2.5005 INCHES MINIMUM AND 2.5015 INCHES MAXIMUM |
| APERTURE SHAPE | ROUND |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 1015 TO 1026 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 1015 OR STEEL COMP 1025 |
| MOUNTING HOLE DIAMETER | |
| MOUNTING HOLE QUANTITY | 8 |
| MOUNTING HOLE TYPE | THREADED AND UNTHREADED |
| OUTSIDE DIAMETER | 4.781 INCHES NOMINAL |
| RAISED SURFACE DIAMETER | 3.785 INCHES MINIMUM AND 3.786 INCHES MAXIMUM |
| RAISED SURFACE HEIGHT | 0.375 INCHES NOMINAL |
| SCREW THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SHAPE | SPECIAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232, TY M, CL 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | PHOSPHATE MANGANESE |
| THICKNESS | 0.625 INCHES NOMINAL |
| THREAD SIZE | 0.190-24 |
| WIDTH | 3.780 INCHES NOMINAL |