The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: CONCAVE, stem_style: GROOVED, head_height: 0.1620 INCHES MINIMUM AND 0.1720 INCHES MAXIMUM IN, neck_radius: 0.5000 INCHES NOMINAL IN, stem_length: 4.7140 INCHES MINIMUM AND 4.7240 INCHES MAXIMUM IN, groove_width: 0.1560 INCHES MINIMUM AND 0.1660 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-203-8640, 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 | CONCAVE |
| stem_style | GROOVED |
| head_height | 0.1620 INCHES MINIMUM AND 0.1720 INCHES MAXIMUM IN |
| neck_radius | 0.5000 INCHES NOMINAL IN |
| stem_length | 4.7140 INCHES MINIMUM AND 4.7240 INCHES MAXIMUM IN |
| groove_width | 0.1560 INCHES MINIMUM AND 0.1660 INCHES MAXIMUM IN |
| stem_diameter | 0.4330 INCHES MINIMUM AND 0.4340 INCHES MAXIMUM IN |
| chamfer_length | 0.0300 INCHES NOMINAL IN |
| groove_diameter | 0.3590 INCHES MINIMUM AND 0.3650 INCHES MAXIMUM IN |
| outside_diameter | 2.3070 INCHES MINIMUM AND 2.3170 INCHES MAXIMUM IN |
| seat_angle_in_deg | 45.0 |
| carbon_relief_groove | NOT INCLUDED |
| NSN | 2805-00-203-8640 |
| STEM DIAMETER | 0.4330 INCHES MINIMUM AND 0.4340 INCHES MAXIMUM IN |
| OUTSIDE DIAMETER | 2.3070 INCHES MINIMUM AND 2.3170 INCHES MAXIMUM IN |
| NECK RADIUS | 0.5000 INCHES NOMINAL IN |
| SEAT ANGLE IN DEG | 45.0 |
| METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM OVERALL |
| GROOVE WIDTH | 0.1560 INCHES MINIMUM AND 0.1660 INCHES MAXIMUM IN |
| DISTANCE FROM GROOVE TO STEM END | 0.3200 INCHES NOMINAL IN |
| HEAD STYLE | CONCAVE |
| CARBON RELIEF GROOVE | NOT INCLUDED |
| CHAMFER ANGLE IN DEG | 45.0 |