4820-00-147-8546

Find complete technical information, availability, and procurement data for: 4820-00-147-8546
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-147-8546

Item Name Code

05487

Assigment Date

09/22/1971 (54 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.

disk flow control device, 2a all ends thread class, right-hand all ends thread direction, spring disk loading method, retaining screw renewable seat ring type

Product Characteristics

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

Thread Class: 2a all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Renewable Seat Ring Type: retaining screw
Connection Style: double threaded section boss fitting gasket with locknut sealing, boss all ends
Valve Operation Method: automatic
Connection Type: threaded external boss all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 6000.0 pounds per square inch single response
Nominal Thread Size: 1.750 inches all ends
Material: copper alloy body
Material: nickel alloy seat
Material Document And Classification: qq-b-637 fed spec single material response body
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Style Designator: straight thru
Thread Series Designator: un 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
123-3	Check Valve
123A-3	Check Valve
123A-3 PL4351	Check Valve
B4862	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-147-8546?

The FSCG of the NSN 4820-00-147-8546 is 4820

Does the NSN 4820-00-147-8546 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-147-8546 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 4820-00-147-8546 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-147-8546 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 4820-00-147-8546 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Sep 22, 1971