8X0017-2

View detailed technical data, stock status, and sourcing information for: 8X0017-2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-978-2320

Item Name Code

22113

Assigment Date

01/01/1962 (64 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

2.124 inches minimum and 2.125 inches maximum body outside diameter, 2.375 inches nominal flange diameter, 0.373 inches minimum and 0.377 inches maximum seat radius, 0.500 inches nominal flange seat to disk end height, 1.248 inches minimum and 1.250 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.

Flange Diameter: 2.375 inches nominal
Body Outside Diameter: 2.124 inches minimum and 2.125 inches maximum
Body Inside Diameter: 1.248 inches minimum and 1.250 inches maximum
Seat Radius: 0.373 inches minimum and 0.377 inches maximum
Flange Seat To Disk End Height: 0.500 inches nominal
Under Flange Height: 0.990 inches minimum and 1.010 inches maximum
Seating Surface Shape: radial
Material: steel overall
Material Document And Classification: 17-4ph,armco steel corp mfr ref single material response overall
Style Designator: plain flanged

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
8X0017-2	Valve Seat
8X0017PC1H2A	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-978-2320?

The FSCG of the NSN 4820-00-978-2320 is 4820

Does the NSN 4820-00-978-2320 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-978-2320 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 4820-00-978-2320 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-978-2320 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 4820-00-978-2320 was assigned to the Federal Catalog?

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