A12990: A12990.
The A12990 is a the manufacturer industrial component. Key specifications include material: STEEL, construction: LAMINATED, hole_diameter: 0.531 INCHES NOMINAL IN, overall_width: 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN, overall_length: 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN, style_designator: NON-CIRCULAR W/BOLT HOLES. This part is cataloged in the U.S.
Government catalog under NSN 5365-00-405-4098, 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 |
| construction | LAMINATED |
| hole_diameter | 0.531 INCHES NOMINAL IN |
| overall_width | 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN |
| overall_length | 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN |
| style_designator | NON-CIRCULAR W/BOLT HOLES |
| aperture_diameter | 2.938 INCHES NOMINAL IN |
| features_provided | SEPARABLE |
| bolt_hole_quantity | 4 |
| lamination_quantity | 3 |
| lamination_thickness | 0.005 INCHES NOMINAL AND 0.010 INCHES NOMINAL AND 0.030 INCHES NOMINAL IN |
| outside_corner_radius | 0.500 INCHES NOMINAL IN |
| NSN | 5365-00-405-4098 |
| STYLE DESIGNATOR | NON-CIRCULAR W/BOLT HOLES |
| OVERALL LENGTH | 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN |
| OVERALL WIDTH | 3.750 INCHES MINIMUM AND 3.781 INCHES MAXIMUM IN |
| APERTURE DIAMETER | 2.938 INCHES NOMINAL IN |
| FEATURES PROVIDED | SEPARABLE |
| LAMINATION QUANTITY | 3 |
| BOLT HOLE QUANTITY | 4 |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH | 2.750 INCHES NOMINAL IN |
| CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH | 2.750 INCHES NOMINAL IN |
| OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH | 0.500 INCHES NOMINAL IN |
No substitute or cross-reference records for this part.