| DISTANCE FROM BASE TO CENTER OF APERTURE | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| DRILLED HOLE DIAMETER | 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
| HOLE TYPE AND QUANTITY | 3 DRILLED |
| LOCKING FEATURE | PREVAILING TORQUE WITH METALLIC INSERT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-377, COMP 2014 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-367, COMP 2219 FED SPEC 2ND MATERIAL RESPONSE LOCKING INSERT |
| MATERIAL | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2219 LOCKING INSERT |
| MATERIAL | STEEL COMP 304 SHELL |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT LENGTH | 1.560 INCHES MINIMUM AND 1.580 INCHES MAXIMUM |
| NUT STYLE | PLATE |
| NUT HEIGHT | 0.869 INCHES NOMINAL |
| PLATE THICKNESS | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| PLATE WIDTH | 1.570 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE LOCKING INSERT |
| SURFACE TREATMENT | CHROMATE LOCKING INSERT |
| TEMP RATING | 300.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNF |