| MATERIAL | STEEL COMP 1060 OR |
| STEEL COMP 1064 OR |
| STEEL COMP 1065 OR |
| STEEL COMP 1566 OR |
| STEEL COMP 1069 OR |
| STEEL COMP 1070 OR |
| STEEL COMP 1074 OR |
| STEEL COMP 1075 OR |
| STEEL COMP 1078 OR |
| STEEL COMP 1080 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND |
| 53.0 ROCKWELL C MAXIMUM |
| STYLE DESIGNATOR | SPLIT HELICAL-RIGHT HAND |
| HOLE DIAMETER | 1.144 INCHES MINIMUM AND |
| 1.172 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 1.853 INCHES NOMINAL |
| MATERIAL THICKNESS | 0.301 INCHES NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | A CLASS AND |
| 2 STYLE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER, LOCK-HELICAL SPRING, REGULAR (MEDIUM) SERIES |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51415-14 |