| APERTURE DIAMETER | 0.137 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
| APERTURE SHAPE | ROUND |
| CORNER RADIUS | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| FEATURES PROVIDED | APERTURE |
| LENGTH | 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTMA 681,COMP O1, T31501 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| MATERIAL | STEEL COMP O1 |
| SHAPE | RECTANGULAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-14538 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMIUM |
| THICKNESS | 0.160 INCHES NOMINAL |
| WIDTH | 0.212 INCHES MINIMUM AND 0.218 INCHES MAXIMUM |