1A90136C: VALVE,POPPET,ENGINE.
The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: INVERTED CONE, stem_style: DOUBLE GROOVED, head_height: 0.1870 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM IN, neck_radius: 0.3125 INCHES NOMINAL IN, stem_length: 5.1090 INCHES NOMINAL IN, stem_diameter: 0.3715 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-363-8735, 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.
| head_style | INVERTED CONE |
| stem_style | DOUBLE GROOVED |
| head_height | 0.1870 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM IN |
| neck_radius | 0.3125 INCHES NOMINAL IN |
| stem_length | 5.1090 INCHES NOMINAL IN |
| stem_diameter | 0.3715 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN |
| chamfer_length | 0.0290 INCHES NOMINAL IN |
| outside_diameter | 1.4320 INCHES MINIMUM AND 1.4420 INCHES MAXIMUM IN |
| seat_angle_in_deg | 45.0 |
| first_groove_width | 0.0940 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN |
| second_groove_width | 0.0940 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN |
| carbon_relief_groove | NOT INCLUDED |
| NSN | 2805-00-363-8735 |
| STEM DIAMETER | 0.3715 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM IN |
| FSC APPLICATION DATA | GASOLINE ENGINE |
| HEAD HEIGHT | 0.1870 INCHES MINIMUM AND 0.2020 INCHES MAXIMUM IN |
| SECOND GROOVE WIDTH | 0.0940 INCHES MINIMUM AND 0.0990 INCHES MAXIMUM IN |
| STEM LENGTH | 5.1090 INCHES NOMINAL IN |
| SEAT ANGLE IN DEG | 45.0 |
| CHAMFER LENGTH | 0.0290 INCHES NOMINAL IN |
| NECK RADIUS | 0.3125 INCHES NOMINAL IN |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM STEM |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM |