254-3947

View detailed technical data, stock status, and sourcing information for: 254-3947
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-01-595-3742

Item Name Code

42140

Assigment Date

04/26/2011 (15 years ago)

A metal ring designed to provide a seating surface for a valve, poppet, engine it is made of special high-grade alloy metal that can withstand high operating temperatures. For fluid valves, see seat, valve.

mrap; c-mtv end item identification, insert - valve seat (exhaust, 0.508mm os od) part name assigned by controlling agency, next higher assembly 311-7229 cylinder head assy; used on 252-8439 cylinder head gp special features

Product Characteristics

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

End Item Identification: mrap; c-mtv
Part Name Assigned By Controlling Agency: insert - valve seat (exhaust, 0.508mm os od)
Special Features: next higher assembly 311-7229 cylinder head assy; used on 252-8439 cylinder head gp

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
254-3947	Engine Valve Seat Insert

FAQs

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

What is the FSCG of the NSN 2815-01-595-3742?

The FSCG of the NSN 2815-01-595-3742 is 2815

Does the NSN 2815-01-595-3742 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-01-595-3742 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 2815-01-595-3742 contain precious materials?

Item does not contain precious metal.

Does NSN 2815-01-595-3742 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 2815-01-595-3742 was assigned to the Federal Catalog?

It was assigned 15 years ago, on Tue, Apr 26, 2011