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

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