4820-01-203-5355

Find complete technical information, availability, and procurement data for: 4820-01-203-5355
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-203-5355

Item Name Code

05488

Assigment Date

03/15/1985 (41 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

outside screw-yoke bonnet type, right-hand all ends thread direction, disk flow control device, spring disk loading method, bolted bonnet attachment method

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
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Maximum Operating Pressure: 160.0 pounds per square inch single response
Nominal Thread Size: 1.000 inches all ends
Opening Pressure Setting: 150.0 pounds per square inch
Material: copper alloy body
Media For Which Designed: water, fresh single response
Style Designator: angle
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-211-5101	No Name Available	11/01/2019

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
174A 1IN 150PSI	Safety Relief Valve
174A1IN MODEL M1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-203-5355?

The FSCG of the NSN 4820-01-203-5355 is 4820

Does the NSN 4820-01-203-5355 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-203-5355 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 4820-01-203-5355 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-203-5355 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 4820-01-203-5355 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Mar 15, 1985