AV37-393PC3

View detailed technical data, stock status, and sourcing information for: AV37-393PC3
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Federal Supply Group

Valves

Federal Supply Classification

4810 Powered Valves

National Stock Number

4810-00-035-7810

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.

0.078 inches nominal flange seat to disk end height, 0.188 inches nominal single threaded portion thread length, 0.250 inches nominal body inside diameter, 0.500 inches nominal flange diameter, 2a single threaded portion thread class

Product Characteristics

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

Thread Class: 2a single threaded portion
Thread Length: 0.188 inches nominal single threaded portion
Flange Diameter: 0.500 inches nominal
Body Inside Diameter: 0.250 inches nominal
Flange Seat To Disk End Height: 0.078 inches nominal
Under Flange Height: 0.391 inches nominal
Seat Angle In Deg: 0.500 nominal
Nominal Thread Size: 0.438 inches single threaded portion
Seating Surface Shape: angular
Material: steel overall
Style Designator: threaded flanged
Thread Series Designator: unf single threaded portion

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-338-9214	No Name Available	01/01/1963

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
AV37-393PC3	Valve Seat
AV37-393PC30	Valve Seat
FV20-787	Valve Seat

FAQs

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

What is the FSCG of the NSN 4810-00-035-7810?

The FSCG of the NSN 4810-00-035-7810 is 4810

Does the NSN 4810-00-035-7810 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4810-00-035-7810 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 4810-00-035-7810 contain precious materials?

Precious metal content is unknown

Does NSN 4810-00-035-7810 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 4810-00-035-7810 was assigned to the Federal Catalog?

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