4820-00-138-1994

Find complete technical information, availability, and procurement data for: 4820-00-138-1994
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-138-1994

Item Name Code

22113

Assigment Date

07/24/1971 (55 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.

0.807 inches minimum and 0.809 inches maximum body outside diameter, plastic overall material, flat seating surface shape, 0.059 inches minimum and 0.061 inches maximum overall height, 0.499 inches minimum and 0.500 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: 0.059 inches minimum and 0.061 inches maximum
Body Outside Diameter: 0.807 inches minimum and 0.809 inches maximum
Body Inside Diameter: 0.499 inches minimum and 0.500 inches maximum
Seating Surface Shape: flat
Material: plastic overall
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
183304-0081	Valve Seat
183304-81	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-138-1994?

The FSCG of the NSN 4820-00-138-1994 is 4820

Does the NSN 4820-00-138-1994 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-138-1994 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 4820-00-138-1994 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-138-1994 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 4820-00-138-1994 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Sat, Jul 24, 1971