4820-01-163-2577

Find complete technical information, availability, and procurement data for: 4820-01-163-2577
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-163-2577

Item Name Code

05487

Assigment Date

09/29/1983 (42 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.

plain, optional end (pipe) all ends connection style, threaded internal pipe all ends connection type, manual valve operation method, right-hand all ends thread direction, disk 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 Direction: right-hand all ends
Flow Control Device: disk
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Mounting Position: vertical
Nominal Thread Size: 0.375 inches all ends
Material: rubber butadiene-acrylonitrile class nbr seat
Material: steel comp 303 body
Material: steel comp 416 flow control device
Material Document And Classification: aisi 303 assn std single material response body
Material Document And Classification: aisi 416 assn std single material response flow control device
Material Document And Classification: mil-g-1149, type 2, class 5 mil spec single material response seat
Style Designator: straight thru
Thread Series Designator: npt 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
050842	Check Valve
H5065-ASSY-2-PL1357	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-163-2577?

The FSCG of the NSN 4820-01-163-2577 is 4820

Does the NSN 4820-01-163-2577 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-163-2577 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 4820-01-163-2577 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-163-2577 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 4820-01-163-2577 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Thu, Sep 29, 1983