342C139H02

View detailed technical data, stock status, and sourcing information for: 342C139H02
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 342C139H02 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-813-7474

Item Name Code

05487

Assigment Date

03/27/1968 (58 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

right-hand all ends thread direction, spring disk loading method, automatic valve operation method, poppet flow control device, plain (pipe) all ends connection style

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 100.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Material: copper alloy overall
Media For Which Designed: air single response
Style Designator: straight thru
Thread Series Designator: npt all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-871-1843	No Name Available	03/29/1972

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
03047-0099	Check Valve
342C139H02	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-813-7474?

The FSCG of the NSN 4820-00-813-7474 is 4820

Does the NSN 4820-00-813-7474 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301010

Does NSN 4820-00-813-7474 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 4820-00-813-7474 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-813-7474 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 4820-00-813-7474 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Mar 27, 1968