| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.439 INCHES MINIMUM AND 0.443 INCHES MAXIMUM |
| OVERALL DIAMETER | 0.821 INCHES MINIMUM AND 0.831 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5604,CONDITION H1045 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 630 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,COUNTERSUNK AND PLAIN FOR USE WITH BOLTS AND NUTS UP TO AND INCLUDING 260 KSI FTU |
| PERIPHERAL SHAPE STYLE | ROUND |
| SPECIFICATION/STANDARD DATA | 80205-NAS-21299 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700,METHOD 1,CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THICKNESS | 0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |