2815-00-649-8438

Find complete technical information, availability, and procurement data for: 2815-00-649-8438
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-649-8438

Item Name Code

16509

Assigment Date

01/01/1963 (63 years ago)

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.

5.005 inches nominal overall height, 1.2460 inches nominal pinhole diameter, 3.750 inches nominal diameter, cavity head style, finished surface finish

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Head Style: cavity
Overall Height: 5.005 inches nominal
Diameter: 3.750 inches nominal
Pinhole Diameter: 1.2460 inches nominal
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 4
Ring Groove Width: 0.1895 inches nominal 4th ring
Ring Groove Width: 0.6860 inches nominal 1st ring
Ring Groove Width: 0.9900 inches nominal 2nd ring
Ring Groove Width: 0.9900 inches nominal 3rd ring
Ring Groove Diameter: 3.334 inches nominal 1st ring
Ring Groove Diameter: 3.334 inches nominal 2nd ring
Ring Groove Diameter: 3.334 inches nominal 3rd ring
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 2.875 inches nominal
Pin Hole Bushing: not included
Distance Between Pin Bosses: 3.050 inches nominal
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: included
Carbon Groove: included
Skirt Slot Style: no slot
Material: aluminum
Surface Treatment: tin

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
260116AS	Internal Combustion Engin Piston

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2815-00-649-8438?

The FSCG of the NSN 2815-00-649-8438 is 2815

Does the NSN 2815-00-649-8438 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-649-8438 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2815-00-649-8438 contain precious materials?

Item does not contain precious metal.

Does NSN 2815-00-649-8438 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2815-00-649-8438 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963