DR31

View detailed technical data, stock status, and sourcing information for: DR31
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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

2805-00-768-7713

Item Name Code

16116

Assigment Date

01/01/1962 (64 years ago)

3.250 inches standard bore diameter, 4 piston accommodation quantity, compression ring,dd-209,66289,8; oil ring,dc-211,66289,4; scraper ring,dc-210,66289,4 ring set component parts

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Standard Bore Diameter: 3.250 inches
Piston Accommodation Quantity: 4
Ring Set Component Parts: compression ring,dd-209,66289,8; oil ring,dc-211,66289,4; scraper ring,dc-210,66289,4

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2805-00-516-9348	No Name Available	12/01/1977
2805-00-839-6035	No Name Available	03/18/1968

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
DR31	Piston Ring Set
NWEAS9	Piston Ring Set
T1389	Piston Ring Set

FAQs

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

What is the FSCG of the NSN 2805-00-768-7713?

The FSCG of the NSN 2805-00-768-7713 is 2805

Does the NSN 2805-00-768-7713 have a Schedule B code assigned?

Yes, the Schedule B code is 8409918000

Does NSN 2805-00-768-7713 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 2805-00-768-7713 contain precious materials?

Precious metal content is unknown

Does NSN 2805-00-768-7713 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 2805-00-768-7713 was assigned to the Federal Catalog?

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