PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GJ1-2CValve,expansion

Parker-Hannifin Corp Div Sporlan Division · NSN 4820-00-690-0452 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-690-0452 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-690-0452. Primary manufacturer part number: GJ1-2C.
Features
  • Valve,expansion — FSC 4820
  • Valve Equalizer Location: INTERNAL
  • Material: COPPER ALLOY BODY
  • First End Connection Type: THREADED EXTERNAL TUBE
  • Body Style: STRAIGHT THRU
  • Valve Pressure Limiting Device: NOT INCLUDED
  • Flow Control Device: CAGE
  • Valve Expansion Control Type: PRESSURE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,expansion, cataloged under National Stock Number 4820-00-690-0452, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corp Div Sporlan Division. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-690-0452
Primary Part NumberGJ1-2C
Item NameValve,expansion
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corp Div Sporlan Division
StatusCANCELLED
Valve Equalizer LocationINTERNAL
MaterialCOPPER ALLOY BODY
First End Connection TypeTHREADED EXTERNAL TUBE
Body StyleSTRAIGHT THRU
Valve Pressure Limiting DeviceNOT INCLUDED
Flow Control DeviceCAGE
Valve Expansion Control TypePRESSURE
First End Style DesignatorFLARED
Second End Connection TypeTHREADED EXTERNAL TUBE
Bulb Media TypeREFRIGERANT 12
Second End Outside Diameter Tube Accommodated0.375 INCHES NOMINAL IN
First End Seat Angle in Deg37.0
First End Outside Diameter Tube Accommodated0.500 INCHES NOMINAL IN
Valve Evaporator Temp Range DesignationHIGH
Media for Which DesignedREFRIGERANT 12
First End Thread Class3A A
Second End Thread DirectionRIGHT-HAND
End Connection Quantity2
Second End Style DesignatorFLARED
First End Thread DirectionRIGHT-HAND
Second End Relationship with First EndNOT IDENTICAL
Mounting MethodCLAMP BULB
Capillary Tube Length60.000 INCHES NOMINAL IN
Second End Thread Class3A A
Temp Rating70.0 FAHRENHEIT DEGF
Second End Seat Angle in Deg37.0
Refrigeration Capacity in Btu Per Hour150.0
Valve Equalizer Connection TypeSOLDER TUBE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4820-00-203-5452 INTERCHANGEABLE
Valve,expansion
5305-00-384-8189209526 INTERCHANGEABLE
Machine Screw and Nut and Washer
Northrop Grumman Systems Corporation
6660-01-573-40810799 INTERCHANGEABLE
Tripod,weather Tracker
Nielsen-Kellerman Co
3940-01-645-422607-99 INTERCHANGEABLE
Block,tackle
Schaefer Marine, Inc.
6640-01-671-75790799 INTERCHANGEABLE
Tripod,laboratory Apparatus
Loftopia, Llc Dba Kestrelmeters.com Div Kestrel Meters
Cross-Reference Index
Part NumberManufacturer
GJ1-2C PRIMARY Parker-Hannifin Corp Div Sporlan Division (USA)
GF1-2C Parker-Hannifin Corp Div Sporlan Division (USA)
GF1-2C Hussmann Refrigerator Co (USA)
079-9 Bauer, Inc. (USA)
HS7495-167 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
4820-00-203-5452INTERCHANGEABLE
VALVE,EXPANSION
5305-00-384-8189INTERCHANGEABLE
MACHINE SCREW AND NUT AND WASHER
209526
6660-01-573-4081INTERCHANGEABLE
TRIPOD,WEATHER TRACKER
0799
3940-01-645-4226INTERCHANGEABLE
BLOCK,TACKLE
07-99
6640-01-671-7579INTERCHANGEABLE
TRIPOD,LABORATORY APPARATUS
0799

Frequently Asked Questions

What is NSN 4820-00-690-0452?

NSN 4820-00-690-0452 is a Valve,expansion, manufactured by Parker-Hannifin Corp Div Sporlan Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-690-0452?

NSN 4820-00-690-0452 has 5 cross-referenced part numbers: GJ1-2C (Parker-Hannifin Corp Div Sporlan Division), GF1-2C (Parker-Hannifin Corp Div Sporlan Division), GF1-2C (Hussmann Refrigerator Co), 079-9 (Bauer, Inc.), HS7495-167 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 4820-00-690-0452?

There are 5 known substitutes for 4820-00-690-0452: 4820-00-203-5452, 5305-00-384-8189, 6660-01-573-4081 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GJ1-2C?

Key specifications for GJ1-2C: Valve Equalizer Location: INTERNAL; Material: COPPER ALLOY BODY; First End Connection Type: THREADED EXTERNAL TUBE; Body Style: STRAIGHT THRU. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-690-0452 still in active supply?

NSN 4820-00-690-0452 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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