4820-01-011-3437

Find complete technical information, availability, and procurement data for: 4820-01-011-3437
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-011-3437

Item Name Code

22113

Assigment Date

10/20/1975 (50 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.

11.240 inches minimum and 11.245 inches maximum flange diameter, 10.740 inches minimum and 10.745 inches maximum body outside diameter, 6.500 inches minimum and 7.312 inches maximum body inside diameter, 0.312 inches nominal flange seat to disk end height, 0.688 inches nominal under flange height

Product Characteristics

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

Flange Diameter: 11.240 inches minimum and 11.245 inches maximum
Body Outside Diameter: 10.740 inches minimum and 10.745 inches maximum
Body Inside Diameter: 6.500 inches minimum and 7.312 inches maximum
Flange Seat To Disk End Height: 0.312 inches nominal
Under Flange Height: 0.688 inches nominal
Seat Angle In Deg: 45.000 nominal
Seating Surface Shape: angular
Material: plastic polytetrafluoroethylene 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
436-18-60-0049-00001	Valve Seat
436-18-60-0049-0001	Valve Seat
698-00-11PC5	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-011-3437?

The FSCG of the NSN 4820-01-011-3437 is 4820

Does the NSN 4820-01-011-3437 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-011-3437 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 4820-01-011-3437 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-011-3437 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 4820-01-011-3437 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Mon, Oct 20, 1975