1220B1278: STOP,MECHANICAL.
The STOP,MECHANICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, design_type: FLANGE, thread_class: 2B, overall_length: 2.2900 INCHES MINIMUM AND 2.3000 INCHES MAXIMUM IN, flange_thickness: 0.1200 INCHES NOMINAL IN, special_features: THE MATERIAL IS MADE PER QQ-N-281, CL A. This part is cataloged in the U.S.
Government catalog under NSN 5340-01-414-7559, 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 | COPPER ALLOY |
| design_type | FLANGE |
| thread_class | 2B |
| overall_length | 2.2900 INCHES MINIMUM AND 2.3000 INCHES MAXIMUM IN |
| flange_thickness | 0.1200 INCHES NOMINAL IN |
| special_features | THE MATERIAL IS MADE PER QQ-N-281, CL A |
| nominal_thread_size | 0.312 INCHES IN |
| thread_quantity_per_inch | 18 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5340-01-414-7559 |
| FLANGE THICKNESS | 0.1200 INCHES NOMINAL IN |
| DESIGN TYPE | FLANGE |
| OVERALL LENGTH | 2.2900 INCHES MINIMUM AND 2.3000 INCHES MAXIMUM IN |
| NOMINAL THREAD SIZE | 0.312 INCHES IN |
| SPECIAL FEATURES | THE MATERIAL IS MADE PER QQ-N-281, CL A |
| THREAD CLASS | 2B |
| THREAD QUANTITY PER INCH | 18 |
| MATERIAL | COPPER ALLOY |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
No substitute or cross-reference records for this part.