PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GF1-2CValve,expansion

Parker-Hannifin Corp Div Sporlan Division · NSN 4820-00-203-5452 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-203-5452 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-203-5452. Primary manufacturer part number: GF1-2C.
Features
  • Valve,expansion — FSC 4820
  • Capillary Tube Length: 60.000 INCHES NOMINAL IN
  • Valve Evaporator Temp Range Designation: LOW
  • First End Outside Diameter Tube Accommodated: 0.500 INCHES NOMINAL IN
  • First End Seat Angle in Deg: 37.0
  • Flow Control Device: NEEDLE
  • First End Style Designator: FLARED
  • Second End Thread Class: 3A A
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 4820-00-203-5452, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-203-5452
Primary Part NumberGF1-2C
Item NameValve,expansion
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corp Div Sporlan Division
StatusACTIVE
Capillary Tube Length60.000 INCHES NOMINAL IN
Valve Evaporator Temp Range DesignationLOW
First End Outside Diameter Tube Accommodated0.500 INCHES NOMINAL IN
First End Seat Angle in Deg37.0
Flow Control DeviceNEEDLE
First End Style DesignatorFLARED
Second End Thread Class3A A
Bulb Length4.500 INCHES NOMINAL IN
Mounting MethodCLAMP BULB
MaterialCOPPER ALLOY BODY
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Valve Equalizer LocationINTERNAL
Second End Seat Angle in Deg37.0
Refrigeration Capacity in Btu Per Hour6.0
Mounting MethodCLAMP BULB
End Connection Quantity2
Refrigeration Capacity in Btu Per Hour6.0
Bulb Diameter0.375 INCHES NOMINAL IN
MaterialNICKEL ALLOY SEAT
Second End Outside Diameter Tube Accommodated0.375 INCHES NOMINAL IN
Second End Style DesignatorFLARED
First End Thread Class3A A
MaterialCOPPER ALLOY STEM
MaterialCOPPER ALLOY STEM
Valve Pressure Limiting DeviceNOT INCLUDED
Second End Relationship with First EndNOT IDENTICAL
Bulb Length4.500 INCHES NOMINAL IN
First End Thread Class3A A
Flow Control DeviceNEEDLE
First End Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-00-690-0452GJ1-2C INTERCHANGEABLE
Valve,expansion
Parker-Hannifin Corp Div Sporlan Division
Cross-Reference Index
Part NumberManufacturer
GF1-2C Parker-Hannifin Corp Div Sporlan Division (USA)
Related Parts
4820-00-690-0452INTERCHANGEABLE
VALVE,EXPANSION
GJ1-2C

Frequently Asked Questions

What is NSN 4820-00-203-5452?

NSN 4820-00-203-5452 is a Valve,expansion, manufactured by Parker-Hannifin Corp Div Sporlan Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-203-5452?

NSN 4820-00-203-5452 has 1 cross-referenced part number: GF1-2C (Parker-Hannifin Corp Div Sporlan Division).

What NSN replaces 4820-00-203-5452?

There is 1 known substitute for 4820-00-203-5452: 4820-00-690-0452. Verify interchangeability with system specifications before substitution.

What are the specifications of GF1-2C?

Key specifications for GF1-2C: Capillary Tube Length: 60.000 INCHES NOMINAL IN; Valve Evaporator Temp Range Designation: LOW; First End Outside Diameter Tube Accommodated: 0.500 INCHES NOMINAL IN; First End Seat Angle in Deg: 37.0. 30 total characteristics are documented in the Federal Logistics Information System.

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