4820-01-113-4541

Find complete technical information, availability, and procurement data for: 4820-01-113-4541
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-113-4541

Item Name Code

05483

Assigment Date

05/27/1981 (45 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 1st end thread direction, 3a 1st end thread class, right-hand 2nd end thread direction, inside screw bonnet type, diaphragm 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 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: diaphragm
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Maximum Operating Temp: 200.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Connection Style: plain (pipe) 2nd end
Valve Operation Method: manual
Connection Type: threaded external pipe 2nd end
Connection Type: threaded external tube 1st end
Maximum Operating Pressure: 500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 2nd end
Nominal Thread Size: 0.438 inches 1st end
Seat Angle: 45.0 degrees 1st end
Special Features: suitable for refrigerant and other hazardous or expensive industrial fluids non-corrosive to brass and stainless steel
Material: copper alloy body
Material: plastic seat
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting stem
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: unjf 1st end

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
MMP91725	Angle Valve
MMP91725-1	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-01-113-4541?

The FSCG of the NSN 4820-01-113-4541 is 4820

Does the NSN 4820-01-113-4541 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-01-113-4541 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 4820-01-113-4541 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-113-4541 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 4820-01-113-4541 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Wed, May 27, 1981