139980

View detailed technical data, stock status, and sourcing information for: 139980
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-424-7338

Item Name Code

05488

Assigment Date

02/03/1996 (30 years ago)

A valve specifically designed to automatically maintain a predetermined discharge flow rate which may be adjustable within a specific range. It is designed to be used with various fluids and may be preset and/or adjustable. It may be in-line or cartridge (manifold) design. Excludes:valve, regulating, feed water; valve, regulating, fluid pressure; valve, regulating, fuel oil; valve, regulating, oil pressure, automatic pilot; vavle, regulating, temperature; valve, angle; and valve, globe.

gasket seal(boss) all ends connection style, automatic valve operation method, nimitz class cvn end item identification, 25.0 gallons per minute valve discharge flow rate, threaded internal boss all ends connection type

Product Characteristics

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

Valve Discharge Flow Rate: 25.0 gallons per minute
End Item Identification: nimitz class cvn
Connection Style: gasket seal(boss) all ends
Valve Operation Method: automatic
Connection Type: threaded internal boss all ends
Adjustable Pressure Range: +25.0 to 400.0 pounds per square inch
Nominal Thread Size: 1.062 inches all ends
Opening Pressure Setting: 200.0 pounds per square inch
Material: iron body
Style Designator: caps w/offset
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
139980	Safety Relief Valve
F677J001 FIND NO. 9	Safety Relief Valve
RPEC-LEV-FEL/S	Safety Relief Valve
RPEC-LEV-FEL/Y	Safety Relief Valve
RPEC-LEV-T10A-FEL/Y	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-424-7338?

The FSCG of the NSN 4820-01-424-7338 is 4820

Does the NSN 4820-01-424-7338 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-424-7338 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 4820-01-424-7338 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-424-7338 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 4820-01-424-7338 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Sat, Feb 3, 1996