42012
View detailed technical data, stock status, and sourcing information for: 42012
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A mushroom or tulip-shaped item having a circular head with a conical face and an extended stem used to regulate the flow of incoming fuel-air mixture or air into the combustion chamber or exhaust gases from the combustion chamber of a reciprocating internal combustion engine.
0.0300 inches nominal chamfer length, 45.0 chamfer angle in deg, 0.1790 inches minimum and 0.1950 inches maximum head height, 0.4220 inches minimum and 0.4280 inches maximum groove diameter, flat head style
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Head Style
- flat
- Head Height
- 0.1790 inches minimum and 0.1950 inches maximum
- Chamfer Angle In Deg
- 45.0
- Groove Diameter
- 0.4220 inches minimum and 0.4280 inches maximum
- Chamfer Length
- 0.0300 inches nominal
- Groove Width
- 0.1560 inches minimum and 0.1660 inches maximum
- Outside Diameter
- 2.4950 inches minimum and 2.5050 inches maximum
- Seat Angle In Deg
- 75.0
- Stem Style
- grooved
- Carbon Relief Groove
- not included
- Neck Radius
- 1.0000 inches nominal
- Stem Length
- 6.5340 inches minimum and 6.5640 inches maximum
- Stem Diameter
- 0.4975 inches minimum and 0.4980 inches maximum
- Distance From Groove To Stem End
- 0.2740 inches minimum and 0.2880 inches maximum
- Metallic Hardness Rating And Location
- 27.0 rockwell c minimum seat face
- Metallic Hardness Rating And Location
- 27.0 rockwell c minimum stem
- Metallic Hardness Rating And Location
- 27.0 rockwell c minimum head
- Metallic Hardness Rating And Location
- 36.0 rockwell c maximum head
- Metallic Hardness Rating And Location
- 36.0 rockwell c maximum seat face
- Metallic Hardness Rating And Location
- 36.0 rockwell c maximum stem
- Metallic Hardness Rating And Location
- 42.0 rockwell c nominal tip
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 10951239 | Engine Poppet Valve |
| 2815001507406 | Engine Poppet Valve |
| 42012 | Engine Poppet Valve |
| B-758 | Engine Poppet Valve |
| B00758-00 | Engine Poppet Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 2815-00-150-7406?
Does the NSN 2815-00-150-7406 have a Schedule B code assigned?
Does NSN 2815-00-150-7406 require demilitarization?
Does NSN 2815-00-150-7406 contain precious materials?
Does NSN 2815-00-150-7406 contain hazardous materials?
When the NSN 2815-00-150-7406 was assigned to the Federal Catalog?
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