4820-01-249-3751

Find complete technical information, availability, and procurement data for: 4820-01-249-3751
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-249-3751

Item Name Code

05488

Assigment Date

02/11/1987 (39 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, automatic valve operation method, 0.500 inches all ends nominal thread size, threaded cartridge all ends connection type, 1500.0 pounds per square inch single response maximum operating pressure

Product Characteristics

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

Thread Direction: right-hand all ends
Valve Operation Method: automatic
Connection Type: threaded cartridge all ends
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Opening Pressure Setting: 448.0 pounds per square inch
Special Features: 0.625 in. orifice
Material: steel comp 316 body
Media For Which Designed: air single response
Thread Series Designator: npt all ends
Furnished Items And Quantity: 1 nut and 1 tailpiece

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
111-01987	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-249-3751?

The FSCG of the NSN 4820-01-249-3751 is 4820

Does the NSN 4820-01-249-3751 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-249-3751 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 4820-01-249-3751 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-249-3751 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 4820-01-249-3751 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Feb 11, 1987