4820-00-451-0570

Find complete technical information, availability, and procurement data for: 4820-00-451-0570
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-451-0570

Item Name Code

05488

Assigment Date

05/17/1971 (55 years ago)

right-hand 2nd end thread direction, 3a 2nd end thread class, poppet flow control device, 3b 1st end thread class, right-hand 1st 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 2nd end
Thread Class: 3b 1st end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Bonnet Type: packing retaining
Disk Loading Method: spring
Valve Discharge Flow Rate: 6.0 gallons per minute
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: gasket seal(boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 2nd end
Connection Type: threaded internal boss 1st end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 16 1st end
Thread Quantity Per Inch: 16 2nd end
Maximum Operating Pressure: 35.0 pounds per square inch single response
Nominal Thread Size: 0.750 inches 2nd end
Nominal Thread Size: 0.750 inches 1st end
Opening Pressure Setting: 48.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated: 0.500 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.500 inches 2nd end
Special Features: second end description is inlet
Material: steel comp 303 body
Material: steel comp 303 seat
Material: steel comp 630 flow control device
Material Document And Classification: ams 5643 mfr ref 2nd material response flow control device
Material Document And Classification: qq-s-764,type 303-canceled fed spec 1st material response body
Material Document And Classification: qq-s-764,type 303-canceled fed spec 3rd material response seat
Media For Which Designed: hydraulic fluid, mineral base single response
Thread Series Designator: unf 2nd end
Thread Series Designator: unjf 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
65651-09106-102	Safety Relief Valve
H555	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-451-0570?

The FSCG of the NSN 4820-00-451-0570 is 4820

Does the NSN 4820-00-451-0570 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-451-0570 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 4820-00-451-0570 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-451-0570 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 4820-00-451-0570 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, May 17, 1971