Engine Poppet Valve

Model / MPN: 138886 | NSN: 2815-00-994-4438

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

2815-00-994-4438

Sold in multiples of

1 EA

DEMIL

Head Style

Flat

Head Height

Between 0.2150 inches and 0.2250 inches

Chamfer Angle In Deg

45.0

Chamfer Length

0.0156 inches

Outside Diameter

Between 1.8700 inches and 1.8800 inches

Minor Outside Diameter

Between 0.4315 inches and 0.4345 inches

Minor Diameter Length

Between 0.6400 inches and 0.6600 inches

Seat Angle In Deg

30.0

Stem Style

Double grooved

Carbon Relief Groove

Included

Neck Radius

0.6250 inches

Stem Length

6.3750 inches

Stem Diameter

Between 0.4500 inches and 0.4510 inches

Distance From First Groove To Stem End

0.3437 inches

Distance From Second Groove To Stem End

0.5312 inches

First Groove Diameter

Between 0.3630 inches and 0.3690 inches

Second Groove Diameter

Between 0.3630 inches and 0.3690 inches

First Groove Width

0.5312 inches

Second Groove Width

0.6250 inches

Material And Location

Steel

13888 Series Parts

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.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
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100% Product Inspections
7 Year Record Retention
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HAZMAT Certified
Worldwide Shipping

138886 Cross Reference

4216707