4220721: 4220721.
The 4220721 is a the manufacturer industrial component. Key specifications include head_style: HEXAGON EXTENDED WASHER, thread_length: 0.630 INCHES NOMINAL IN, fastener_length: 0.630 INCHES NOMINAL IN, special_features: MATERIAL: GRADE 5 STEEL,PER SAE J429;FINISH SPEC: WSD-M21P10-B3;LOCKING FEATURE: SERRATED SURFACE, thread_direction: RIGHT-HAND, width_between_flats: 0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 6145-01-202-0667, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| head_style | HEXAGON EXTENDED WASHER |
| thread_length | 0.630 INCHES NOMINAL IN |
| fastener_length | 0.630 INCHES NOMINAL IN |
| special_features | MATERIAL: GRADE 5 STEEL,PER SAE J429;FINISH SPEC: WSD-M21P10-B3;LOCKING FEATURE: SERRATED SURFACE |
| thread_direction | RIGHT-HAND |
| width_between_flats | 0.500 INCHES NOMINAL IN |
| end_item_identification | 4210-01-622-0440;TRUCK,FIRE FIGHTING |
| nominal_thread_diameter | 0.310 INCHES IN |
| extended_washer_diameter | 0.690 INCHES NOMINAL IN |
| thread_quantity_per_inch | 18 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| part_name_assigned_by_controlling_agency | SCR,WLK,HEX |
| NSN | 6145-01-202-0667 |
| ROUND CONDUCTOR SIZE | 9 AWG ALL CONDUCTORS |
| VOLTAGE RATING | 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS |
| CONDUCTOR QUANTITY | 33 |
| STRAND AWG SIZE PER CONDUCTOR | 30 ALL CONDUCTORS |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B3 ASSN STD SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS |
| CROSS-SECTIONAL SHAPE STYLE | ROUNDROUND |
| CONDUCTOR FORM | STRANDED ALL CONDUCTORS |
| STRAND QUANTITY PER CONDUCTOR | 140 ALL CONDUCTORS |
| CONDUCTOR ARRANGEMENT AND QUANTITY | 3 SINGLES |
| COLOR | BLACK FIRST POSITION JACKET CABLE |