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4820-00-474-1759

Find complete technical information, availability, and procurement data for: 4820-00-474-1759

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4820-00-474-1759
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-474-1759
Item Name Code
05488
Assigment Date
01/01/1963 (63 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.

right-hand 2nd end thread direction, poppet flow control device, 0.125 inches 2nd end nominal pipe size accommodated, right-hand 1st end thread direction, 3a 1st end thread class

Product Characteristics

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

Nominal Pipe Size Accommodated
0.125 inches 2nd end
Thread Class
3a 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
Maximum Operating Temp
160.0 fahrenheit single response
Connection Style
flared (tube) 1st end
Connection Style
plain (pipe) 2nd end
Valve Operation Method
automatic
Connection Type
threaded external pipe 2nd end
Connection Type
threaded external tube 1st end
Features Provided
pressure tight outlet side
Thread Quantity Per Inch
20 1st end
Thread Quantity Per Inch
27 2nd end
Nominal Thread Size
0.125 inches 2nd end
Nominal Thread Size
0.437 inches 1st end
Seat Angle
37.0 degrees 1st end
Opening Pressure Setting
25.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
steel corrosion resisting body
Material
steel corrosion resisting flow control device
Material
steel corrosion resisting seat
Style Designator
straight thru
Thread Series Designator
anpt 2nd end
Thread Series Designator
unf 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
1650-00-586-8945 No Name Available 01/01/1963

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
8182-11 Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-474-1759?
The FSCG of the NSN 4820-00-474-1759 is 4820
Does the NSN 4820-00-474-1759 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-474-1759 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 4820-00-474-1759 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-474-1759 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 4820-00-474-1759 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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