253207

View detailed technical data, stock status, and sourcing information for: 253207
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-145-6675

Item Name Code

05487

Assigment Date

01/15/1983 (43 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.

beveled (pipe) 1st end connection style, 5.563 inches 1st end nominal pipe size accommodated, automatic valve operation method, butt weld pipe 1st end connection type, 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.

Nominal Pipe Size Accommodated: 5.563 inches 1st end
Flow Control Device: disk
Connection Style: beveled (pipe) 1st end
Valve Operation Method: automatic
Connection Type: butt weld pipe 1st end
Mounting Position: horizontal
Material: steel body
Style Designator: straight thru

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
253207	Check Valve
253207 ASSEMBLY 98	Check Valve
2643174	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-145-6675?

The FSCG of the NSN 4820-01-145-6675 is 4820

Does the NSN 4820-01-145-6675 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-145-6675 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 4820-01-145-6675 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-145-6675 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 4820-01-145-6675 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Sat, Jan 15, 1983