PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6731968Valve,expansion

Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division · NSN 4820-00-359-5316 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-359-5316 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-359-5316. Primary manufacturer part number: 6731968.
Features
  • Valve,expansion — FSC 4820
  • Valve Equalizer Location: INTERNAL
  • Refrigeration Capacity in Btu Per Hour: 12.0
  • Second End Style Designator: FLARED
  • Valve Expansion Control Type: THERMOSTATIC
  • Valve Pressure Limiting Device Setting: 5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
  • Valve Pressure Limiting Device: INCLUDED
  • Bulb Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Flow Control Device construction
General Description

The Valve,expansion, cataloged under National Stock Number 4820-00-359-5316, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-359-5316
Primary Part Number6731968
Item NameValve,expansion
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division
StatusCANCELLED
Valve Equalizer LocationINTERNAL
Refrigeration Capacity in Btu Per Hour12.0
Second End Style DesignatorFLARED
Valve Expansion Control TypeTHERMOSTATIC
Valve Pressure Limiting Device Setting5.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
Valve Pressure Limiting DeviceINCLUDED
Bulb Diameter0.500 INCHES NOMINAL IN
Second End Relationship with First EndNOT IDENTICAL
Second End Thread DirectionRIGHT-HAND
Body StyleANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS
Bulb Media TypeREFRIGERANT 12
First End Seat Angle in Deg45.0
First End Thread Class3A A
First End Outside Diameter Tube Accommodated0.500 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
End Connection Quantity2
Capillary Tube Length60.000 INCHES NOMINAL IN
First End Style DesignatorFLARED
First End Connection TypeTHREADED EXTERNAL TUBE
Second End Thread Class3A A
Valve Evaporator Temp Range DesignationHIGH
Flow Control DeviceDISK, TOP GUIDED
Second End Seat Angle in Deg45.0
Media for Which DesignedREFRIGERANT 12
First End Thread DirectionRIGHT-HAND
Bulb Length3.625 INCHES MAXIMUM IN
Second End Connection TypeTHREADED EXTERNAL TUBE
MaterialSTEEL CORROSION RESISTING SEAT
Second End Outside Diameter Tube Accommodated0.375 INCHES NOMINAL IN
MaterialCOPPER ALLOY BODY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3455-00-266-9448 INTERCHANGEABLE
File,rotary
9540-00-528-9358 INTERCHANGEABLE
Angle,structural
5310-00-599-3226508-19 INTERCHANGEABLE
Washer,flat
Cummins Power Generation Inc.
5365-01-478-180250819 INTERCHANGEABLE
Plug,machine Thread
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
Cross-Reference Index
Part NumberManufacturer
50819 Singer Co the Controls Div (USA)
6731968 Parker-Hannifin Corp Div Fluid Control Division (USA)
6731968 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division (USA)
Related Parts
3455-00-266-9448INTERCHANGEABLE
FILE,ROTARY
9540-00-528-9358INTERCHANGEABLE
ANGLE,STRUCTURAL
5310-00-599-3226INTERCHANGEABLE
WASHER,FLAT
508-19
5365-01-478-1802INTERCHANGEABLE
PLUG,MACHINE THREAD
50819

Frequently Asked Questions

What is NSN 4820-00-359-5316?

NSN 4820-00-359-5316 is a Valve,expansion, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-359-5316?

NSN 4820-00-359-5316 has 3 cross-referenced part numbers: 50819 (Singer Co the Controls Div), 6731968 (Parker-Hannifin Corp Div Fluid Control Division), 6731968 (Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division).

What NSN replaces 4820-00-359-5316?

There are 4 known substitutes for 4820-00-359-5316: 3455-00-266-9448, 9540-00-528-9358, 5310-00-599-3226 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6731968?

Key specifications for 6731968: Valve Equalizer Location: INTERNAL; Refrigeration Capacity in Btu Per Hour: 12.0; Second End Style Designator: FLARED; Valve Expansion Control Type: THERMOSTATIC. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-359-5316 still in active supply?

NSN 4820-00-359-5316 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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