5178540

View detailed technical data, stock status, and sourcing information for: 5178540
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-354-1441

Item Name Code

42140

Assigment Date

01/01/1963 (63 years ago)

0.309 inches minimum and 0.312 inches maximum overall height, 1.275 inches nominal body inside diameter, 0.750 nominal seat angle in deg, 1.628 inches nominal body outside diameter, 50.0 rockwell c minimum body hardness rating

Product Characteristics

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

Overall Height: 0.309 inches minimum and 0.312 inches maximum
Body Outside Diameter: 1.628 inches nominal
Body Inside Diameter: 1.275 inches nominal
Seat Angle In Deg: 0.750 nominal
Hardness Rating: 50.0 rockwell c minimum body
Hardness Rating: 60.0 rockwell c maximum face
Seating Surface Shape: angular
Material: steel overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-328-5366	No Name Available	01/01/1963
2815-00-524-7681	No Name Available	01/01/1961
4820-00-627-4088	No Name Available	01/01/1963

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
5151741	Engine Valve Seat Insert
5178540	Engine Valve Seat Insert
N11031PC5151741A	Engine Valve Seat Insert
N24150PC2	Engine Valve Seat Insert
N24152PC2	Engine Valve Seat Insert
N24153PC5	Engine Valve Seat Insert
N271-115PC5151741A	Engine Valve Seat Insert
NT4021PC2	Engine Valve Seat Insert
NT7775PC2	Engine Valve Seat Insert
PC5178540	Engine Valve Seat Insert
WAUG1400	Engine Valve Seat Insert

FAQs

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

What is the FSCG of the NSN 2815-00-354-1441?

The FSCG of the NSN 2815-00-354-1441 is 2815

Does the NSN 2815-00-354-1441 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-354-1441 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 2815-00-354-1441 contain precious materials?

Item does not contain precious metal.

Does NSN 2815-00-354-1441 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 2815-00-354-1441 was assigned to the Federal Catalog?

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