| HARDNESS RATING | 440.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 520.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM |
| HOLE DIAMETER | 12.4 MILLIMETERS MINIMUM AND 12.8 MILLIMETERS MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | SPRINGSTEEL CK60 IAW DIN 17222 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 1.55 MILLIMETERS MINIMUM AND 1.65 MILLIMETERS MAXIMUM |
| MATERIAL | STEEL OVERALL |
| OUTSIDE DIAMETER | 23.75 MILLIMETERS MINIMUM AND 24.25 MILLIMETERS MAXIMUM |
| OVERALL HEIGHT | 2.6 MILLIMETERS NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,FLAT |
| STYLE DESIGNATOR | SPRING TENSION |
| SURFACE TREATMENT | ZINC AND PASSIVATE OVERALL |