4820-00-464-8259

Find complete technical information, availability, and procurement data for: 4820-00-464-8259
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-464-8259

Item Name Code

20520

Assigment Date

02/27/1972 (54 years ago)

poppet flow control device, right-hand all ends thread direction, 0.172 inches nominal aperture diameter, 3a all ends thread class, 275.0 fahrenheit single response maximum operating temp

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 all ends
Thread Direction: right-hand all ends
Aperture Diameter: 0.172 inches nominal
Flow Control Device: poppet
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: flared (tube) all ends
Valve Operation Method: manual
Connection Type: threaded external tube all ends
Mounting Position: horizontal
Maximum Operating Pressure: 1000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Seat Angle: 37.0 degrees all ends
Special Features: zero leakage at proof pressure 1500 psi
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: angle
Thread Series Designator: unf all ends

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
12384-1	Restrictor Check Valve
53526	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-464-8259?

The FSCG of the NSN 4820-00-464-8259 is 4820

Does NSN 4820-00-464-8259 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 4820-00-464-8259 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-464-8259 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 4820-00-464-8259 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, Feb 27, 1972