4202PC135

View detailed technical data, stock status, and sourcing information for: 4202PC135
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-2633

Item Name Code

05488

Assigment Date

01/01/1963 (63 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, spring disk loading method, 0.750 inches 1st end nominal pipe size accommodated, disk flow control device, plain (pipe) 1st end connection style

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: 0.750 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe 1st end
Adjustable Pressure Range: +45.0 to 55.0 pounds per square inch
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 1st end
Material: copper alloy overall
Media For Which Designed: air 1st response
Media For Which Designed: gas, natural 2nd response
Style Designator: straight thru
Thread Series Designator: npt 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-287-6033	No Name Available	09/11/1974

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
1A3-4 45T055PSI	Safety Relief Valve
3102PC132	Safety Relief Valve
3103ITEM48	Safety Relief Valve
3111PC132	Safety Relief Valve
4201PC135	Safety Relief Valve
4202PC135	Safety Relief Valve
4210PC135	Safety Relief Valve
4801PC135	Safety Relief Valve
4802PC135	Safety Relief Valve
4810PC135	Safety Relief Valve
9012PC106	Safety Relief Valve
N148PC142T0153-155-156	Safety Relief Valve
N149PC142T0153-155-156	Safety Relief Valve
N150PC142T0153-155-156	Safety Relief Valve
N158PC142T0153-155-156	Safety Relief Valve
N160PC142T0153-155-156	Safety Relief Valve
N303PC142T0153-155-156	Safety Relief Valve
N305PC142T0153-155-156	Safety Relief Valve
N466PC119T0122-124T0133	Safety Relief Valve
N472PC119T0122-124T0133	Safety Relief Valve
N522PC119T0122-124T0133	Safety Relief Valve
N546PC119T0122-124T0133	Safety Relief Valve
N611PC119T0122-124T0133	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-2633?

The FSCG of the NSN 4820-00-287-2633 is 4820

Does the NSN 4820-00-287-2633 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-2633 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 4820-00-287-2633 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-2633 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 4820-00-287-2633 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963