FJ-1/4C-3/8-1/2

View detailed technical data, stock status, and sourcing information for: FJ-1/4C-3/8-1/2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-480-1798

Item Name Code

05493

Assigment Date

06/12/1974 (52 years ago)

flared first end style designator, straight thru body style, right-hand first end thread direction, not identical second end relationship with first end, 0.500 inches nominal first end outside diameter tube accommodated

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 Style Designator: flared
First End Outside Diameter Tube Accommodated: 0.500 inches nominal
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded external tube
Second End Style Designator: flared
Second End Outside Diameter Tube Accommodated: 0.375 inches nominal
Second End Thread Direction: right-hand
First End Seat Angle In Deg: 37.0
Second End Seat Angle In Deg: 37.0
Flow Control Device: cone, bottom guided
Valve Expansion Control Type: pressure
Valve Pressure Limiting Device: included
Valve Pressure Limiting Device Setting: 26.0 pounds per square inch absolute
Bulb Media Type: any acceptable
Valve Equalizer Location: internal
Refrigeration Capacity In Btu Per Hour: 3.5
Special Features: media for which designed: refrigerant 12 or refrigerant 22
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Below is a list of NSNs that have been officially superseded by this NSN: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
4820-00-197-4146	No Name Available	09/01/1977

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
FF1-4C3-8X1-2	Expansion Valve
FJ-1/4C-3/8-1/2	Expansion Valve

FAQs

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

What is the FSCG of the NSN 4820-00-480-1798?

The FSCG of the NSN 4820-00-480-1798 is 4820

Does the NSN 4820-00-480-1798 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-480-1798 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 4820-00-480-1798 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-480-1798 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 4820-00-480-1798 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Wed, Jun 12, 1974