AR00490

View detailed technical data, stock status, and sourcing information for: AR00490
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-011-7829

Item Name Code

16509

Assigment Date

04/18/1967 (59 years ago)

2.0000 inches nominal pinhole diameter, relieved head style, 5.000 inches nominal diameter, 6.250 inches nominal overall height, 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: relieved
Overall Height: 6.250 inches nominal
Diameter: 5.000 inches nominal
Oil Passage Type: hole
Pinhole Diameter: 2.0000 inches nominal
Surface Finish: semifinished
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 3
Ring Groove Width: 0.0940 inches nominal 2nd ring
Ring Groove Width: 0.1250 inches nominal 1st ring
Ring Groove Width: 0.1560 inches nominal 3rd ring
Ring Groove Diameter: 4.562 inches nominal
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 4.000 inches nominal
Pin Hole Bushing: not included
Distance Between Pin Bosses: 2.438 inches nominal
Retaining Ring Groove: included
Pin: included
Pin Type For Which Designed: floating
Ring: included
Carbon Groove: not included
Material: aluminum
Weight: 108.0 ounces

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-229-2813	No Name Available	03/01/1977
2815-00-695-1217	No Name Available	09/10/1971
2815-00-791-1436	No Name Available	02/12/1968
2815-00-891-0414	No Name Available	09/04/1968
2815-00-919-9120	No Name Available	05/09/1969
2815-00-938-5722	No Name Available	03/01/1979
2815-00-970-1286	No Name Available	02/16/1968

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
AR00490	Internal Combustion Engin Piston
AR490	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2815-00-011-7829?

The FSCG of the NSN 2815-00-011-7829 is 2815

Does the NSN 2815-00-011-7829 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-011-7829 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 2815-00-011-7829 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-011-7829 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 2815-00-011-7829 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Tue, Apr 18, 1967