4820-00-775-9001

Find complete technical information, availability, and procurement data for: 4820-00-775-9001
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-775-9001

Item Name Code

05488

Assigment Date

01/01/1962 (64 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.

3a 1st end thread class, right-hand 2nd end thread direction, poppet flow control device, right-hand 1st end thread direction, 3a 2nd end thread class

Product Characteristics

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

Thread Class: 3a 1st end
Thread Class: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 0.1 cubic meters per minute
Renewable Seat Ring Type: pressed-in
Maximum Operating Temp: 165.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 2nd end
Connection Type: threaded external tube 1st end
Features Provided: valve stem lock shield and pressure tight outlet side
Thread Quantity Per Inch: 24 2nd end
Adjustable Pressure Range: +170.0 to 180.0 pounds per square inch
Maximum Operating Pressure: 175.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 1st end
Nominal Thread Size: 0.625 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Opening Pressure Setting: 170.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.375 inches 2nd end
Material: aluminum alloy 2024 body
Material: aluminum alloy 2024 flow control device
Material: rubber synthetic seat
Material Document And Classification: qq-a-225/6,t4 fed spec single material response body
Material Document And Classification: qq-a-225/6,t4 fed spec single material response flow control device
Media For Which Designed: oil, hydraulic single response
Surface Treatment: anodize
Thread Series Designator: unef 2nd end
Thread Series Designator: unf 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
2R2200	Safety Relief Valve
9019642	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-775-9001?

The FSCG of the NSN 4820-00-775-9001 is 4820

Does the NSN 4820-00-775-9001 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-775-9001 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 4820-00-775-9001 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-775-9001 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 4820-00-775-9001 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962