Engine Poppet Valve

Model / MPN: 278301R1 | NSN: 2815-00-805-5688

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

2815-00-805-5688

Sold in multiples of

1 EA

DEMIL

Head Style

Flat

Head Height

Between 0.1770 inches and 0.1970 inches

Chamfer Angle In Deg

30.0

Groove Diameter

Between 0.3290 inches and 0.3350 inches

Chamfer Length

0.0312 inches

Groove Width

Between 0.0950 inches and 0.1050 inches

Outside Diameter

Between 1.6470 inches and 1.6570 inches

Seat Angle In Deg

45.0

Stem Style

Grooved

Carbon Relief Groove

Not included

Neck Radius

0.3800 inches

Stem Length

Between 5.8550 inches and 5.8960 inches

Stem Diameter

Between 0.3715 inches and 0.3725 inches

Distance From Groove To Stem End

Between 0.2620 inches and 0.2920 inches

Material And Location

Steel, federal standard 66, sae hnv4

Metallic Hardness Rating And Location

43.0 rockwell c tip

Fsc Application Data

Diesel engine

278301R Series Parts

278301R1

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.

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278301R1 Cross Reference

278301R1
278301R1
278301R1