4820-00-664-6655

Find complete technical information, availability, and procurement data for: 4820-00-664-6655
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-664-6655

Item Name Code

27565

Assigment Date

01/01/1963 (63 years ago)

high pressure flare (used with male threaded style no. 39) first end style designator, threaded internal tube first end connection type, angle body style, flowmeter and inlet pressure gage furnished items, argon and helium and nitrogen, gaseous media for which designed

Product Characteristics

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

Body Style: angle
Furnished Items: flowmeter and inlet pressure gage
Media For Which Designed: argon and helium and nitrogen, gaseous
First End Connection Type: threaded internal tube
First End Style Designator: high pressure flare (used with male threaded style no. 39)
First End Outside Diameter Tube Accommodated: 0.375 inches nominal
First End Thread Size And Series/Type Designator: unable to decode
First End Thread Class: 2b
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded external gas cylinder
Second End Style Designator: swivel nut, flared
Second End Thread Size And Series/Type Designator: unable to decode
Second End Thread Direction: right-hand
Flow Control Device: needle
Flow Control Device Material: unable to decode
End Connection Quantity: 2
Regulation Type: 1st stage automatic, 2nd stage manual
Manual Control Method: knob
Valve Loading Method: spring
Outlet Pressure Setting: 50.0 pounds per square inch
Filter: included
Temp Rating: -40.0 fahrenheit minimum and 165.0 fahrenheit maximum
Material: unable to decode

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-291-5565	No Name Available	04/01/2002
4820-00-508-6141	No Name Available	05/01/1986
6680-00-777-3485	No Name Available	04/29/1966
3431-00-977-5386	No Name Available	01/28/1972
6685-00-980-3456	No Name Available	04/25/1969

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
03X90	Fluid Pressure Regulating Valve
04X34	Fluid Pressure Regulating Valve
04X35	Fluid Pressure Regulating Valve
0781-3772	Fluid Pressure Regulating Valve
998846	Fluid Pressure Regulating Valve
HVTS2537-580	Fluid Pressure Regulating Valve
R502	Fluid Pressure Regulating Valve
WP4-0745-23	Fluid Pressure Regulating Valve

FAQs

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

What is the FSCG of the NSN 4820-00-664-6655?

The FSCG of the NSN 4820-00-664-6655 is 4820

Does the NSN 4820-00-664-6655 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809015

Does NSN 4820-00-664-6655 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 4820-00-664-6655 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-664-6655 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 4820-00-664-6655 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963