S 2568-2

View detailed technical data, stock status, and sourcing information for: S 2568-2

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S 2568-2
Federal Supply Group
Engines, Turbines, and Components
Federal Supply Classification
2815 Diesel Engines and Components
National Stock Number
2815-00-106-4558
Item Name Code
42140
Assigment Date
07/15/1968 (58 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.

recessed seal accommodation type, 0.373 inches minimum and 0.375 inches maximum overall height, 45.000 nominal seat angle in deg, 2.159 inches minimum and 2.160 inches maximum body outside diameter, 1.750 inches minimum and 1.760 inches maximum body inside diameter

Product Characteristics

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

Overall Height
0.373 inches minimum and 0.375 inches maximum
Body Outside Diameter
2.159 inches minimum and 2.160 inches maximum
Body Inside Diameter
1.750 inches minimum and 1.760 inches maximum
Seat Angle In Deg
45.000 nominal
Seal Accommodation Type
recessed
Hardness Rating
50.0 rockwell c minimum and 60.0 rockwell c maximum overall
Seating Surface Shape
angular
Style Designator
plain

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
164589-3 Engine Valve Seat Insert
840-164589-3 Engine Valve Seat Insert
S 2568-2 Engine Valve Seat Insert
W-592+30 Engine Valve Seat Insert

FAQs

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

What is the FSCG of the NSN 2815-00-106-4558?
The FSCG of the NSN 2815-00-106-4558 is 2815
Does the NSN 2815-00-106-4558 have a Schedule B code assigned?
Yes, the Schedule B code is 8409998000
Does NSN 2815-00-106-4558 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 2815-00-106-4558 contain precious materials?
Item does not contain precious metal.
Does NSN 2815-00-106-4558 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 2815-00-106-4558 was assigned to the Federal Catalog?
It was assigned 58 years ago, on Mon, Jul 15, 1968

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