L268891

View detailed technical data, stock status, and sourcing information for: L268891
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-453-9067

Item Name Code

16509

Assigment Date

04/11/1969 (57 years ago)

5.500 inches nominal overall height, hole 6th ring oil passage type, 1.6262 inches minimum and 1.6268 inches maximum pinhole diameter, flat head style, 3.997 inches nominal diameter

Product Characteristics

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

Head Style: flat
Overall Height: 5.500 inches nominal
Diameter: 3.997 inches nominal
Oil Passage Type: hole 6th ring
Pinhole Diameter: 1.6262 inches minimum and 1.6268 inches maximum
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 6
Ring Groove Width: 0.1880 inches minimum and 0.1890 inches maximum 5th ring
Ring Groove Width: 0.1880 inches minimum and 0.1890 inches maximum 6th ring
Ring Groove Width: 0.0955 inches minimum and 0.0965 inches maximum 2nd ring
Ring Groove Width: 0.0955 inches minimum and 0.0965 inches maximum 3rd ring
Ring Groove Width: 0.0955 inches minimum and 0.0965 inches maximum 4th ring
Ring Groove Width: 0.1480 inches nominal 1st ring
Groove Taper Angle: 7 deg 30 min no. 1 groove 1st ring
Ring Groove Diameter: 3.564 inches nominal 5th ring
Ring Groove Diameter: 3.564 inches nominal 6th ring
Ring Groove Diameter: 3.602 inches minimum and 3.612 inches maximum 4th ring
Ring Groove Diameter: 3.602 inches minimum and 3.612 inches maximum 1st ring
Ring Groove Diameter: 3.602 inches minimum and 3.612 inches maximum 2nd ring
Ring Groove Diameter: 3.602 inches minimum and 3.612 inches maximum 3rd ring
Ring Groove Position Below Piston Pin: number 1,number 2,number 3,number 4,number 5,number 6 all rings
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 3.302 inches nominal
Pin Hole Bushing: included
Distance Between Pin Bosses: 1.488 inches minimum and 1.498 inches maximum
Retaining Ring Groove: not included
Pin: included
Pin Type For Which Designed: floating
Ring: included
Carbon Groove: included
Material: iron cast

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
A0301205	Internal Combustion Engin Piston
A268891	Internal Combustion Engin Piston
L268891	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-00-453-9067?

The FSCG of the NSN 2815-00-453-9067 is 2815

Does the NSN 2815-00-453-9067 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-453-9067 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 2815-00-453-9067 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-453-9067 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 2815-00-453-9067 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Apr 11, 1969