4820-00-959-5621

Find complete technical information, availability, and procurement data for: 4820-00-959-5621
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-959-5621

Item Name Code

05487

Assigment Date

01/01/1962 (64 years ago)

right-hand all ends thread direction, 3a all ends thread class, poppet flow control device, flared (tube) all ends connection style, spring disk loading method

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
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 18 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.375 inches 1st end
Material: aluminum alloy seat
Material: aluminum alloy body
Material: steel comp 440c flow control device
Material Document And Classification: fed-std-66, aisi 440c/sae 51440c fed std single material response flow control device
Media For Which Designed: water-oil-gas single response
Surface Treatment: anodize
Surface Treatment Document And Classification: mil-a-8625,ty 2 mil spec single treatment response
Style Designator: straight thru
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
458-6D2-275	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-959-5621?

The FSCG of the NSN 4820-00-959-5621 is 4820

Does the NSN 4820-00-959-5621 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-959-5621 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 4820-00-959-5621 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-959-5621 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 4820-00-959-5621 was assigned to the Federal Catalog?

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