378P

Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2805 Except Aircraft; and Components Gasoline Reciprocating Engines

National Stock Number

2805-00-110-1968

Item Name Code

16509

Assigment Date

08/05/1968 (57 years ago)

3.437 inches nominal diameter, dish head style, 0.9900 inches nominal pinhole diameter, 3.812 inches nominal overall height, slot oil passage type

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Head Style: dish
Overall Height: 3.812 inches nominal
Diameter: 3.437 inches nominal
Oil Passage Type: slot
Pinhole Diameter: 0.9900 inches nominal
Surface Finish: finished
Finished Size Designation: standard
Skirt Type: solid
Skirt Bottom Cutaway Feature: not included
Ring Groove Quantity: 4
Ring Groove Width: 0.1300 inches nominal 1st ring
Ring Groove Width: 0.1300 inches nominal 2nd ring
Ring Groove Width: 0.1300 inches nominal 3rd ring
Ring Groove Width: 0.1820 inches nominal 4th ring
Ring Groove Diameter: 3.045 inches nominal 1st ring
Ring Groove Diameter: 3.045 inches nominal 2nd ring
Ring Groove Diameter: 3.045 inches nominal 3rd ring
Ring Groove Diameter: 3.045 inches nominal 4th ring
Oil Groove: not included
Distance From Pin Hole Center To Extreme Top: 2.095 inches nominal
Pin Hole Bushing: not included
Distance Between Pin Bosses: 1.438 inches nominal
Retaining Ring Groove: included
Pin: not included
Pin Type For Which Designed: floating
Ring: not included
Carbon Groove: not included
Material: aluminum alloy
Weight: 21.0 ounces

Related Parts & Specifications

This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.

Part Number	Name
2216P	Internal Combustion Engin Piston
378P	Internal Combustion Engin Piston
4512451	Internal Combustion Engin Piston
A1409P	Internal Combustion Engin Piston
ABGA1409P	Internal Combustion Engin Piston
L1229F	Internal Combustion Engin Piston

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 378P

What is the FSCG of the NSN 2805-00-110-1968?

The FSCG of the NSN 2805-00-110-1968 is 2805

Does the NSN 2805-00-110-1968 have a Schedule B code assigned?

Yes, the Schedule B code is 8409918000

Does NSN 2805-00-110-1968 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 2805-00-110-1968 contain precious materials?

Precious metal content is unknown

Does NSN 2805-00-110-1968 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 2805-00-110-1968 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Aug 5, 1968