| MATERIAL DOCUMENT AND CLASSIFICATION | SPEC NO.HWS4 GROUP 1A OR 1B MFR REF SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| III FSC APPLICATION DATA | 5310 |
| OVERALL DIAMETER | 2.855 INCHES MINIMUM AND 2.870 INCHES MAXIMUM |
| SPECIAL FEATURES | ANTI-ROTATION;IRREGULAR SHAPE; |
| WIDTH ACROSS FLATS | 2.485 INCHES MINIMUM AND 2.500 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | GROUP 530 MFR REF SINGLE TREATMENT RESPONSE AND GROUP 555 MFR REF SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | PHOSPHATE AND OIL |
| THICKNESS | 0.300 INCHES NOMINAL |