| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| HEAT TREATMENT | QUENCHED AND TEMPERED |
| HOLE DIAMETER | 0.128 INCHES MINIMUM AND 0.137 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.225 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL THICKNESS | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL |
| NONDEFINITIVE SPEC/STD DATA | A CLASS AND 1 STYLE |
| STYLE DESIGNATOR | SPLIT HELICAL-RIGHT HAND |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |