| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6721 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 347 OVERALL OR STEEL COMP 321 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| MOUNTING HOLE ARRANGEMENT STYLE | VERTICAL CENTERLINE |
| MOUNTING HOLE DIAMETER | 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED, COUNTERSUNK |
| OUTSIDE DIAMETER | 2.660 INCHES MINIMUM AND 2.680 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.125 INCHES NOMINAL |
| STYLE DESIGNATOR | ROUNDED |
| SURFACE FINISH | 32.0 MICROINCHES ONE FACE |
| DISTANCE BETWEEN HOLES ALONG WIDTH | 2.856 INCHES NOMINAL |
| DISTANCE FROM HORIZONTAL CENTERLINE TO CENTER OF LOWER HOLE | 1.428 INCHES NOMINAL |
| EAR RADIUS | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| APERTURE DIAMETER | 2.005 INCHES MINIMUM AND 2.015 INCHES MAXIMUM |
| COUNTERSINK DIAMETER | 0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CROSS-SECTIONAL SHAPE STYLE | FLAT W/APERTURE |