868A4: VALVE,POPPET,ENGINE.
The VALVE,POPPET,ENGINE is a the manufacturer industrial component. Key specifications include head_style: FLAT, stem_style: GROOVED, head_height: 0.1850 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN, neck_radius: 0.4400 INCHES NOMINAL IN, stem_length: 5.1830 INCHES MINIMUM AND 5.1980 INCHES MAXIMUM IN, groove_width: 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM IN. This part is cataloged in the U.S.
Government catalog under NSN 2805-00-752-1813, 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 | FLAT |
| stem_style | GROOVED |
| head_height | 0.1850 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN |
| neck_radius | 0.4400 INCHES NOMINAL IN |
| stem_length | 5.1830 INCHES MINIMUM AND 5.1980 INCHES MAXIMUM IN |
| groove_width | 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM IN |
| stem_diameter | 0.4332 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 | 1.7910 INCHES MINIMUM AND 1.8010 INCHES MAXIMUM IN |
| seat_angle_in_deg | 60.0 |
| carbon_relief_groove | NOT INCLUDED |
| NSN | 2805-00-752-1813 |
| STEM DIAMETER | 0.4332 INCHES MINIMUM AND 0.4340 INCHES MAXIMUM IN |
| HEAD HEIGHT | 0.1850 INCHES MINIMUM AND 0.2050 INCHES MAXIMUM IN |
| STEM LENGTH | 5.1830 INCHES MINIMUM AND 5.1980 INCHES MAXIMUM IN |
| SEAT ANGLE IN DEG | 60.0 |
| CHAMFER LENGTH | 0.0300 INCHES NOMINAL IN |
| NECK RADIUS | 0.4400 INCHES NOMINAL IN |
| GROOVE DIAMETER | 0.3590 INCHES MINIMUM AND 0.3650 INCHES MAXIMUM IN |
| METALLIC HARDNESS RATING AND LOCATION | 53.0 ROCKWELL C NOMINAL TIP |
| DISTANCE FROM GROOVE TO STEM END | 0.2230 INCHES NOMINAL IN |
| OUTSIDE DIAMETER | 1.7910 INCHES MINIMUM AND 1.8010 INCHES MAXIMUM IN |