4820-01-235-9740

Find complete technical information, availability, and procurement data for: 4820-01-235-9740
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-235-9740

Item Name Code

05483

Assigment Date

07/09/1986 (40 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

3a all ends thread class, needle flow control device, threaded bonnet attachment method, right-hand all ends thread direction, inside screw bonnet 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: 3a all ends
Thread Direction: right-hand all ends
Flow Control Device: needle
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Maximum Operating Temp: 160.0 fahrenheit single response
End Item Identification: f/a-18 hornet aircraft
Connection Style: flareless (tube) all ends
Valve Operation Method: manual
Connection Type: threaded external tube all ends
Mounting Facility: panel
Thread Quantity Per Inch: 20 all ends
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Seat Angle: 37.0 degrees all ends
Criticality Code Justification: feat
Special Features: weapon system essential
Material: copper alloy body
Material: steel corrosion resisting stem
Media For Which Designed: water-oil-gas single response
Style Designator: angle
Thread Series Designator: unj 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
S148F-4B-P	Angle Valve
S148F-4BP	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-01-235-9740?

The FSCG of the NSN 4820-01-235-9740 is 4820

Does the NSN 4820-01-235-9740 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801095

Does NSN 4820-01-235-9740 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 4820-01-235-9740 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-235-9740 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 4820-01-235-9740 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Jul 9, 1986