52128S5901-998623ALT1PC3A

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4356

Item Name Code

05493

Assigment Date

01/01/1963 (63 years ago)

flared first end style designator, 0.375 inches nominal first end outside diameter tube accommodated, 2a first end thread class, straight thru body style, threaded external tube first end connection type

Product Characteristics

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

Body Style: straight thru
First End Connection Type: threaded external tube
First End Style Designator: flared
First End Outside Diameter Tube Accommodated: 0.375 inches nominal
First End Thread Class: 2a
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded internal pipe
Second End Style Designator: plain
Second End Nominal Pipe Size Accommodated: 0.250 inches
Second End Thread Direction: right-hand
First End Seat Angle In Deg: 45.0
Flow Control Device: any acceptable
End Connection Quantity: 2
Adjustable Pressure Range: +0.1 to 35.0 pounds per square inch
Valve Expansion Control Type: pressure
Valve Pressure Limiting Device: not included
Valve Equalizer Location: internal
Refrigeration Capacity In Btu Per Hour: 25.2
Special Features: media for which designed: methyl chloride,gas refrigerant 12,sulphur diodioxide,gaseous
Material: copper alloy body

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-203-8117	No Name Available	04/01/2016

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
52127S5901-998603ALT2PC3A	Expansion Valve
52128S5901-998623ALT1PC3A	Expansion Valve
5F20-752	Expansion Valve
N3600ALT2PC3A	Expansion Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4356?

The FSCG of the NSN 4820-00-287-4356 is 4820

Does the NSN 4820-00-287-4356 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-287-4356 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 4820-00-287-4356 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-4356 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 4820-00-287-4356 was assigned to the Federal Catalog?

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