4820-00-623-8754

Find complete technical information, availability, and procurement data for: 4820-00-623-8754
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-623-8754

Item Name Code

22113

Assigment Date

01/01/1963 (63 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.

0.859 inches nominal flange diameter, 0.438 inches nominal under flange height, 0.125 inches nominal flange seat to disk end height, 0.219 inches nominal body inside diameter, 0.361 inches minimum and 0.362 inches maximum body outside 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: 0.859 inches nominal
Body Outside Diameter: 0.361 inches minimum and 0.362 inches maximum
Body Inside Diameter: 0.219 inches nominal
Flange Seat To Disk End Height: 0.125 inches nominal
Under Flange Height: 0.438 inches nominal
Seal Accommodation Type: recessed
Hardness Rating: 325.0 brinell standard minimum and 350.0 brinell standard maximum body
Seating Surface Shape: flat
Material: steel overall
Material Document And Classification: qq-s-763,class 410 fed spec 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
200103UPC237	Valve Seat
200110AFPC459	Valve Seat
3287223PC237	Valve Seat
3298029PC459	Valve Seat
5121B	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-623-8754?

The FSCG of the NSN 4820-00-623-8754 is 4820

Does the NSN 4820-00-623-8754 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-623-8754 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 4820-00-623-8754 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-623-8754 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 4820-00-623-8754 was assigned to the Federal Catalog?

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