| CENTER HOLE SHAPE STYLE | ROUND |
| CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| HOLE DIAMETER | 0.326 INCHES MINIMUM AND 0.336 INCHES MAXIMUM |
| OUTSIDE LEFT CORNER CHAMFER ANGLE | 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM |
| OVERALL DIAMETER | 0.595 INCHES MINIMUM AND 0.605 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5639 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 304 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SPRING SEAT |
| PERIPHERAL SHAPE STYLE | ROUND |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35, TYPE VI ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THICKNESS | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |