4820-01-003-7634

Find complete technical information, availability, and procurement data for: 4820-01-003-7634
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-003-7634

Item Name Code

22113

Assigment Date

05/05/1975 (51 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.

0.505 inches minimum and 0.515 inches maximum body inside diameter, 0.134 inches minimum and 0.136 inches maximum flange seat to disk end height, 0.080 inches minimum and 0.090 inches maximum under flange height, 0.871 inches minimum and 0.873 inches maximum flange diameter, 0.764 inches minimum and 0.766 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: 0.871 inches minimum and 0.873 inches maximum
Body Outside Diameter: 0.764 inches minimum and 0.766 inches maximum
Body Inside Diameter: 0.505 inches minimum and 0.515 inches maximum
Flange Seat To Disk End Height: 0.134 inches minimum and 0.136 inches maximum
Under Flange Height: 0.080 inches minimum and 0.090 inches maximum
Seating Surface Shape: flat
Material: plastic polytetrafluoroethylene body
Material: steel comp 303 face
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
183296-0093	Valve Seat
183296-93	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-003-7634?

The FSCG of the NSN 4820-01-003-7634 is 4820

Does the NSN 4820-01-003-7634 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-003-7634 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 4820-01-003-7634 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-003-7634 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 4820-01-003-7634 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Mon, May 5, 1975