4028641

View detailed technical data, stock status, and sourcing information for: 4028641
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-432-1184

Item Name Code

42140

Assigment Date

09/14/1972 (53 years ago)

A replaceable cylindrical item designed to provide wear surface and maintain alignment of a reciprocating valve stem and the like, it may have a flange(s) and/or grooves.

1.604 inches nominal body inside diameter, 45.000 nominal seat angle in deg, 1.812 inches nominal body outside diameter, angular seating surface shape, 0.315 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.

Overall Height: 0.315 inches nominal
Body Outside Diameter: 1.812 inches nominal
Body Inside Diameter: 1.604 inches nominal
Seat Angle In Deg: 45.000 nominal
Seating Surface Shape: angular
Material: steel overall
Style Designator: plain

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-01-007-0450	No Name Available	03/01/1977

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
4028641	Engine Valve Seat Insert
4028641-1	Engine Valve Seat Insert
74028641	Engine Valve Seat Insert
IPD-4028641	Engine Valve Seat Insert

FAQs

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

What is the FSCG of the NSN 2815-00-432-1184?

The FSCG of the NSN 2815-00-432-1184 is 2815

Does the NSN 2815-00-432-1184 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-432-1184 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 2815-00-432-1184 contain precious materials?

Item does not contain precious metal.

Does NSN 2815-00-432-1184 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 2815-00-432-1184 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Thu, Sep 14, 1972