Secure Ordering: +1 (757) 528-8028

Worldwide distributor of NSN parts and consumables located in the USA.

Engine Poppet Valve

Model / MPN: 18537 | NSN: 2815-00-322-1970
ITAR Registered seal

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.

Product Details
NATO Stock Number
Sold in multiples of
1 EA
Head Style
Head Height
0.2580 inches
Groove Diameter
0.3600 inches
Groove Width
0.1500 inches
Outside Diameter
2.5000 inches
Seat Angle In Deg
Stem Style
Carbon Relief Groove
Not included
Neck Radius
1.0000 inches
Stem Length
6.8350 inches
Stem Diameter
0.4320 inches
Distance From Groove To Stem End
0.4460 inches
Material And Location

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Email Address:
Phone Number:
Your name:
Privacy    Terms

Certified Quality Assurance  Quality check icon

  •   ISO 9001:2015 + AS9120B
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   On Time Delivery
  •   HAZMAT Certified
  •   Worldwide Shipping
18537 Cross Reference
  • 18537