The BLOCK,TACKLE is a the manufacturer industrial component. Key specifications include weight: 1.75 POUNDS LBS, material: IRON OVERALL, block_type: REGULAR, shell_length: 3.5 INCHES NOMINAL IN, style_designator: ROUND PATTERN, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3940-01-677-3678, 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.
| weight | 1.75 POUNDS LBS |
| material | IRON OVERALL |
| block_type | REGULAR |
| shell_length | 3.5 INCHES NOMINAL IN |
| sheave_quantity | 1 |
| style_designator | ROUND PATTERN |
| surface_treatment | ZINC OVERALL |
| sheave_outside_diameter | 3.0 INCHES NOMINAL IN |
| maximum_tackle_diameter_accommodated | 0.375 INCHES IN |
| part_name_assigned_by_controlling_agency | PULLEY, UPRIGHT MOUNT |
| NSN | 3940-01-677-3678 |
| MATERIAL | IRON OVERALL |
| SHEAVE QUANTITY | 1 |
| MAXIMUM TACKLE DIAMETER ACCOMMODATED | 0.375 INCHES IN |
| SHELL LENGTH | 3.5 INCHES NOMINAL IN |
| SHEAVE OUTSIDE DIAMETER | 3.0 INCHES NOMINAL IN |
| BLOCK TYPE | REGULAR |
| SURFACE TREATMENT | ZINC OVERALL |
| STYLE DESIGNATOR | ROUND PATTERN |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PULLEY, UPRIGHT MOUNT |
| WEIGHT | 1.75 POUNDS LBS |