12Z3039-6: WASHER,LOCK.
The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL, hole_diameter: 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.426 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM OR ZINC OVERALL. This part is cataloged in the U.S.
Government catalog under NSN 5310-00-188-8918, 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 COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL |
| hole_diameter | 0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN |
| hardness_rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| outside_diameter | 0.426 INCHES NOMINAL IN |
| style_designator | SPLIT HELICAL-RIGHT HAND |
| surface_treatment | CADMIUM OR ZINC OVERALL |
| material_thickness | 0.078 INCHES NOMINAL IN |
| material_document_and_classification | -QQ-S-633 CANC FED SPEC ALL MATERIAL RESPONSES OVERALL |
| surface_treatment_document_and_classification | -QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR -QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| NSN | 5310-00-188-8918 |
| WIDTH ACROSS FLATS | 0.562 INCHES NOMINAL IN |
| THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD SIZE | 0.375 INCHES IN |
| NUT HEIGHT | 0.406 INCHES NOMINAL IN |
| NUT STYLE | CASTELLATED, HEXAGON |
| THREAD CLASS | 2B |
| THREAD QUANTITY PER INCH | 16 |
| MATERIAL | STEEL OVERALL |
| BEARING SURFACE TYPE | WASHER FACED |