507221: BRAKE DRUM.
The BRAKE DRUM is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, cooling_fin: NOT INCLUDED, balancing_pad: NOT INCLUDED, overall_width: 1.257 INCHES NOMINAL IN, oil_drain_hole: NOT INCLUDED, adjustment_hole: NOT INCLUDED. This part is cataloged in the U.S.
Government catalog under NSN 3040-01-067-3855, 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.
| material | STEEL OVERALL |
| cooling_fin | NOT INCLUDED |
| balancing_pad | NOT INCLUDED |
| overall_width | 1.257 INCHES NOMINAL IN |
| oil_drain_hole | NOT INCLUDED |
| adjustment_hole | NOT INCLUDED |
| inspection_hole | NOT INCLUDED |
| special_features | MTG HOLES THD 0.312-18 UNC 2B RH THD;ONE END OF CENTER HOLE HEX SHAPE+0.320 IN. ACROSS FLATS IN |
| center_hole_diameter | 0.365 INCHES NOMINAL IN |
| braking_surface_width | 1.257 INCHES NOMINAL IN |
| mounting_hole_spacing | EQUALLY SPACED ON 2.375 IN. BOLT CIRCLE IN |
| mounting_hole_diameter | 0.312 INCHES NOMINAL IN |
| NSN | 3040-01-067-3855 |
| MOUNTING HOLE QUANTITY | 2 |
| ADJUSTMENT HOLE | NOT INCLUDED |
| BALANCING PAD | NOT INCLUDED |
| MOUNTING HOLE SPACING | EQUALLY SPACED ON 2.375 IN. BOLT CIRCLE IN |
| BRAKING SURFACE WIDTH | 1.257 INCHES NOMINAL IN |
| INSPECTION HOLE | NOT INCLUDED |
| MOUNTING HOLE DIAMETER | 0.312 INCHES NOMINAL IN |
| OVERALL WIDTH | 1.257 INCHES NOMINAL IN |
| OVERALL OUTSIDE DIAMETER | 4.062 INCHES NOMINAL IN |
| BRAKING SURFACE LOCATION | EXTERNAL |
No substitute or cross-reference records for this part.