4820-01-014-3333

Find complete technical information, availability, and procurement data for: 4820-01-014-3333
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-014-3333

Item Name Code

05487

Assigment Date

12/20/1975 (50 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

3a all ends thread class, right-hand all ends thread direction, pressed-in renewable seat ring type, spring disk loading method, poppet flow control device

Product Characteristics

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

Thread Class: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Renewable Seat Ring Type: pressed-in
Maximum Operating Temp: 200.0 fahrenheit single response
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 1.062 inches all ends
Seat Angle: 37.0 degrees 1st end
Material: copper alloy body
Material: rubber butadiene-acrylonitrile class nbr seat
Material: steel comp 304 flow control device
Material Document And Classification: fed-std-66, aisi 304/sae 30304 fed std single material response flow control device
Media For Which Designed: air single response
Style Designator: straight thru
Thread Series Designator: unef all ends
Furnished Items And Quantity: 2 ferrule and 2 nut

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-190-0349	No Name Available	07/01/1992

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
A488-12B1-2	Check Valve
A488-12B2-2	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-014-3333?

The FSCG of the NSN 4820-01-014-3333 is 4820

Does the NSN 4820-01-014-3333 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-014-3333 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 4820-01-014-3333 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-014-3333 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 4820-01-014-3333 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sat, Dec 20, 1975