3240769-R

View detailed technical data, stock status, and sourcing information for: 3240769-R
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-363-8465

Item Name Code

16509

Assigment Date

01/01/1963 (63 years ago)

11.990 inches minimum and 12.000 inches maximum overall height, semifinished surface finish, 8.449 inches minimum and 8.451 inches maximum diameter, 3.0250 inches minimum and 3.0450 inches maximum pinhole diameter, hat 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: hat
Overall Height: 11.990 inches minimum and 12.000 inches maximum
Diameter: 8.449 inches minimum and 8.451 inches maximum
Pinhole Diameter: 3.0250 inches minimum and 3.0450 inches maximum
Surface Finish: semifinished
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 5
Ring Groove Width: 0.1890 inches minimum and 0.1900 inches maximum 3rd ring
Ring Groove Width: 0.1890 inches minimum and 0.1900 inches maximum 4th ring
Ring Groove Width: 0.1930 inches minimum and 0.1940 inches maximum 2nd ring
Ring Groove Width: 0.1930 inches minimum and 0.1940 inches maximum 1st ring
Ring Groove Width: 0.2510 inches minimum and 0.2500 inches maximum 5th ring
Ring Groove Width: 0.2510 inches minimum and 0.2500 inches maximum 6th ring
Ring Groove Width: 0.2510 inches minimum and 0.2500 inches maximum 7th ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 1st ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 2nd ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 3rd ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 4th ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 5th ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 6th ring
Ring Groove Diameter: 7.780 inches minimum and 7.790 inches maximum 7th ring
Ring Groove Position Below Piston Pin: number 1,number 2,number 3,number 4,@number 5,number 6 and number 7 all rings
Oil Groove: included
Distance From Pin Hole Center To Extreme Top: 6.943 inches minimum and 6.948 inches maximum
Pin Hole Bushing: included
Distance Between Pin Bosses: 3.456 inches minimum and 3.466 inches maximum
Retaining Ring Groove: not included
Pin: not included
Pin Type For Which Designed: floating
Ring: not included
Carbon Groove: not included
Material: iron cast
Weight: 21.1 kilograms

Replaces National Stock Numbers

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

NSN	Name	Date
2815-00-175-7236	No Name Available	01/01/1963

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
3240769	Internal Combustion Engin Piston
3240769-R	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-00-363-8465?

The FSCG of the NSN 2815-00-363-8465 is 2815

Does the NSN 2815-00-363-8465 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-363-8465 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 2815-00-363-8465 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-363-8465 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 2815-00-363-8465 was assigned to the Federal Catalog?

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