531640: GASKET.
The GASKET is a the manufacturer industrial component. Key specifications include material: CELLULOSE OVERALL, hole_diameter: 0.345 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.945 INCHES NOMINAL IN, bolt_circle_diameter: 4.188 INCHES NOMINAL IN, outside_corner_radius: 0.375 INCHES NOMINAL IN, cross-sectional_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-273-5573, 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 | CELLULOSE OVERALL |
| hole_diameter | 0.345 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| overall_width | 4.945 INCHES NOMINAL IN |
| bolt_circle_diameter | 4.188 INCHES NOMINAL IN |
| outside_corner_radius | 0.375 INCHES NOMINAL IN |
| cross-sectional_thickness | 0.032 INCHES NOMINAL IN |
| cross-sectional_shape_style | SOLID SINGLE OR COMPOSITION |
| side_radius_from_gasket_center | 1.812 INCHES NOMINAL IN |
| NSN | 5305-00-273-5573 |
| WIDTH ACROSS FLATS | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.160 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| FASTENER LENGTH | 0.500 INCHES NOMINAL IN |
| THREAD LENGTH | 0.500 INCHES MAXIMUM IN |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| NOMINAL THREAD DIAMETER | 0.164 INCHES IN |
| HEAD STYLE | FLAT CHAMFER |
| THREAD DIRECTION | RIGHT-HAND |
| SPECIFICATION/STANDARD DATA | 81349-MILS933 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |