2805-00-393-6494

Find complete technical information, availability, and procurement data for: 2805-00-393-6494
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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

2805-00-393-6494

Item Name Code

16509

Assigment Date

01/01/1963 (63 years ago)

An item designed to inclose the cylinder bore(s) of an engine block to form a combustion chamber(s). It may have liquid cooling passage(s) and/or air cooling fin(s) and may include valve(s), valve guide(s), rocker arm(s), and the like. It is a component part of an engine, gasoline. See also cylinder head, diesel engine.

finished surface finish, 2.133 inches minimum and 2.137 inches maximum diameter, 0.4190 inches minimum and 0.4195 inches maximum pinhole diameter, flat head style, 2.000 inches nominal overall height

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: 2.000 inches nominal
Diameter: 2.133 inches minimum and 2.137 inches maximum
Pinhole Diameter: 0.4190 inches minimum and 0.4195 inches maximum
Surface Finish: finished
Finished Size Designation: oversize
Oversize: 0.030 inches nominal
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 3
Ring Groove Width: 0.1880 inches minimum and 0.1890 inches maximum 2nd ring
Ring Groove Width: 0.0955 inches minimum and 0.0965 inches maximum 1st ring
Ring Groove Diameter: 1.842 inches minimum and 1.852 inches maximum 2nd ring
Ring Groove Diameter: 1.882 inches minimum and 1.892 inches maximum 1st ring
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 1.122 inches minimum and 1.127 inches maximum
Pin Hole Bushing: not included
Distance Between Pin Bosses: 0.813 inches nominal
Retaining Ring Groove: not included
Pin: not included
Pin Type For Which Designed: floating
Ring: not included
Carbon Groove: not included
Material: aluminum
Weight: 4.0384 ounces
Fsc Application Data: gasoline engine,nonaircraft

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
9980407300C203	Internal Combustion Engin Piston
AA7A407-030	Internal Combustion Engin Piston

FAQs

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

What is the FSCG of the NSN 2805-00-393-6494?

The FSCG of the NSN 2805-00-393-6494 is 2805

Does the NSN 2805-00-393-6494 have a Schedule B code assigned?

Yes, the Schedule B code is 8409918000

Does NSN 2805-00-393-6494 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 2805-00-393-6494 contain precious materials?

Precious metal content is unknown

Does NSN 2805-00-393-6494 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 2805-00-393-6494 was assigned to the Federal Catalog?

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