| BRUSH SIZE DESIGNATION | CAL. 50 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-401-CANCELED FED SPEC SINGLE MATERIAL RESPONSE BRUSH PART |
| MATERIAL | COPPER ALLOY 510 BRUSH PART |
| SINGLE BRUSH DIAMETER OF BRUSH PART | 0.749 INCHES MINIMUM AND 0.763 INCHES MAXIMUM |
| SINGLE BRUSH LENGTH OF BRUSH PART | 3.750 INCHES NOMINAL |
| SINGLE BRUSH OVERALL LENGTH | 6.197 INCHES NOMINAL |
| SINGLE BRUSH TAPERED BRUSH PART MINOR DIAMETER | 0.563 INCHES MINIMUM AND 0.577 INCHES MAXIMUM |
| PINHOLE DIAMETER | 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
| STYLE DESIGNATOR | SPIRAL TAPERED ROUND, RATCHET END |