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.

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

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Below is a list of NSNs that have been officially superseded by this NSN: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