2815-00-871-8404

Find complete technical information, availability, and procurement data for: 2815-00-871-8404
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-871-8404

Item Name Code

16509

Assigment Date

01/01/1960 (66 years ago)

1.9980 inches minimum and 1.9990 inches maximum pinhole diameter, 4.875 inches nominal diameter, 6.250 inches nominal overall height, hole 4th ring oil passage type, cavity 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: cavity
Overall Height: 6.250 inches nominal
Diameter: 4.875 inches nominal
Oil Passage Type: hole 4th ring
Pinhole Diameter: 1.9980 inches minimum and 1.9990 inches maximum
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 4
Ring Groove Width: 1.2500 inches nominal 4th ring
Ring Groove Width: 0.1560 inches nominal 1st ring
Ring Groove Width: 0.1560 inches nominal 2nd ring
Ring Groove Width: 0.1560 inches nominal 3rd ring
Groove Taper Angle: 14 degree 45 minutes 2nd ring
Groove Taper Angle: 19 degree 45 minutes 1st ring
Ring Groove Diameter: 4.361 inches minimum 3rd ring
Ring Groove Diameter: 4.371 inches maximum 4th ring
Ring Groove Diameter: 4.415 inches minimum 1st ring
Ring Groove Diameter: 4.445 inches maximum 2nd ring
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 3.998 inches minimum and 4.001 inches maximum
Pin Hole Bushing: not included
Distance Between Pin Bosses: 1.210 inches minimum and 1.225 inches maximum
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: included
Carbon Groove: not included
Material: aluminum alloy
Fsc Application Data: engine,diesel

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-602-6374	No Name Available	09/07/1966

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
BM13756	Internal Combustion Engin Piston
BM38610	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-00-871-8404?

The FSCG of the NSN 2815-00-871-8404 is 2815

Does the NSN 2815-00-871-8404 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-871-8404 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 2815-00-871-8404 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-871-8404 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 2815-00-871-8404 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960