112-109-20

View detailed technical data, stock status, and sourcing information for: 112-109-20
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-01-008-3859

Item Name Code

16509

Assigment Date

08/20/1975 (50 years ago)

flat head style, 3.875 inches nominal overall height, 3.262 inches nominal diameter, 0.9900 inches nominal pinhole diameter, hole oil passage type

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: 3.875 inches nominal
Diameter: 3.262 inches nominal
Oil Passage Type: hole
Pinhole Diameter: 0.9900 inches nominal
Surface Finish: finished
Finished Size Designation: oversize
Oversize: 0.020 inches nominal
Skirt Type: solid
Cut Depth: 1.000 inches nominal
Skirt Bottom Cutaway Feature: included
Ring Groove Quantity: 4
Ring Groove Width: 0.1875 inches nominal 4th ring
Ring Groove Width: 0.0950 inches nominal 1st ring
Ring Groove Width: 0.0950 inches nominal 2nd ring
Ring Groove Width: 0.0950 inches nominal 3rd ring
Ring Groove Diameter: 2.892 inches nominal 1st ring
Ring Groove Diameter: 2.892 inches nominal 2nd ring
Ring Groove Diameter: 2.892 inches nominal 3rd ring
Ring Groove Diameter: 2.892 inches nominal 4th ring
Oil Groove: included
Distance From Pin Hole Center To Extreme Top: 2.000 inches nominal
Pin Hole Bushing: not included
Distance Between Pin Bosses: 1.515 inches nominal
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: not included
Carbon Groove: not included
Material: aluminum alloy
Weight: 19.0 ounces

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
112-0109-20	Internal Combustion Engin Piston
112-0175-20	Internal Combustion Engin Piston
112-109-20	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-01-008-3859?

The FSCG of the NSN 2815-01-008-3859 is 2815

Does the NSN 2815-01-008-3859 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-01-008-3859 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 2815-01-008-3859 contain precious materials?

Precious metal content is unknown

Does NSN 2815-01-008-3859 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 2815-01-008-3859 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Wed, Aug 20, 1975