PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-200055M1Valve,check

Parker Hannifin Corporation Div Aerospace Group Headquarters · NSN 4820-01-039-3626 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-039-3626 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-039-3626. Primary manufacturer part number: 2-200055M1.
Features
  • Valve,check — FSC 4820
  • Nominal Thread Size: 0.875 INCHES FIRST END IN
  • Surface Treatment: ANODIZE
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Flow Control Device: POPPET
  • Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Operation Method: AUTOMATIC
  • Material: ALUMINUM ALLOY OVERALL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-039-3626, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Aerospace Group Headquarters. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-039-3626
Primary Part Number2-200055M1
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Aerospace Group Headquarters
StatusACTIVE
Nominal Thread Size0.875 INCHES FIRST END IN
Surface TreatmentANODIZE
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Flow Control DevicePOPPET
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Operation MethodAUTOMATIC
MaterialALUMINUM ALLOY OVERALL
Connection TypeTHREADED EXTERNAL TUBE SECOND END
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Thread Series DesignatorUNF FIRST END
Style DesignatorSTRAIGHT THRU
Nominal Outside Diameter Tube Accommodated0.625 INCHES FIRST END IN
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
Disk Loading MethodSPRING
Mounting PositionHORIZONTAL
Nominal Thread Size0.750 INCHES SECOND END IN
Seat Angle37.0 DEGREES FIRST END
Thread DirectionRIGHT-HAND FIRST END
Thread Series DesignatorUNF SECOND END
Criticality Code JustificationFEAT
Thread Class3A SECOND END A
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Thread DirectionRIGHT-HAND SECOND END
Nominal Outside Diameter Tube Accommodated0.500 INCHES SECOND END IN
Seat Angle37.0 DEGREES SECOND END
Thread Class3A FIRST END A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-291-9643250120 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5999-00-860-9634250120 INTERCHANGEABLE
Delay Line
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
4730-00-999-963625-0120 INTERCHANGEABLE
Coupling,pipe
Opw Fueling Components Inc. Div Opw Fueling Components
Cross-Reference Index
Part NumberManufacturer
2-2000555M1 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
2-200055M1 PRIMARY Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
250120 Westfield Hydraulics Inc Dba Westfield Hydraulics Inc (USA)
A15PS305-1 The Boeing Company (USA)
Related Parts
5330-00-291-9643INTERCHANGEABLE
SEAL,PLAIN ENCASED
250120
5999-00-860-9634INTERCHANGEABLE
DELAY LINE
250120
4730-00-999-9636INTERCHANGEABLE
COUPLING,PIPE
25-0120

Frequently Asked Questions

What is NSN 4820-01-039-3626?

NSN 4820-01-039-3626 is a Valve,check, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-039-3626?

NSN 4820-01-039-3626 has 4 cross-referenced part numbers: 2-2000555M1 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 2-200055M1 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 250120 (Westfield Hydraulics Inc Dba Westfield Hydraulics Inc), A15PS305-1 (The Boeing Company).

What NSN replaces 4820-01-039-3626?

There are 3 known substitutes for 4820-01-039-3626: 5330-00-291-9643, 5999-00-860-9634, 4730-00-999-9636. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-200055M1?

Key specifications for 2-200055M1: Nominal Thread Size: 0.875 INCHES FIRST END IN; Surface Treatment: ANODIZE; Connection Type: THREADED EXTERNAL TUBE FIRST END; Flow Control Device: POPPET. 27 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com