2387A2

View detailed technical data, stock status, and sourcing information for: 2387A2
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2805 Except Aircraft; and Components Gasoline Reciprocating Engines

National Stock Number

2805-00-752-1966

Item Name Code

16509

Assigment Date

01/01/1962 (64 years ago)

slot oil passage type, 4.125 inches nominal diameter, 1.1250 inches minimum and 1.1252 inches maximum pinhole diameter, 4.125 inches nominal overall height, dish 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: dish
Overall Height: 4.125 inches nominal
Diameter: 4.125 inches nominal
Oil Passage Type: slot
Pinhole Diameter: 1.1250 inches minimum and 1.1252 inches maximum
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Cut Depth: 0.438 inches nominal
Skirt Bottom Cutaway Feature: included
Ring Groove Quantity: 4
Ring Groove Width: 0.1890 inches minimum and 0.1900 inches maximum 3rd ring
Ring Groove Width: 0.0960 inches minimum and 0.0970 inches maximum 2nd ring
Ring Groove Width: 0.0970 inches minimum and 0.0980 inches maximum 1st ring
Ring Groove Diameter: 3.658 inches minimum and 3.668 inches maximum 1st ring
Ring Groove Diameter: 3.722 inches minimum and 3.732 inches maximum 2nd ring
Ring Groove Diameter: 3.722 inches minimum and 3.732 inches maximum 3rd ring
Ring Groove Position Below Piston Pin: number 1,number 2,number 3,and number 4 all rings
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 1.997 inches minimum and 2.003 inches maximum
Pin Hole Bushing: not included
Distance Between Pin Bosses: 1.656 inches nominal
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: not included
Carbon Groove: not included
Material: aluminum
Surface Treatment: copper alloy or tin
Weight: 27.000 ounces

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2805-00-342-7704	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
2387-A2	Internal Combustion Engin Piston
2387A2	Internal Combustion Engin Piston
7521966	Internal Combustion Engin Piston
913531	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2805-00-752-1966?

The FSCG of the NSN 2805-00-752-1966 is 2805

Does the NSN 2805-00-752-1966 have a Schedule B code assigned?

Yes, the Schedule B code is 8409918000

Does NSN 2805-00-752-1966 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 2805-00-752-1966 contain precious materials?

Precious metal content is unknown

Does NSN 2805-00-752-1966 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 2805-00-752-1966 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962