PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

320-3-1Valve,regulating,fluid Pressure

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division · NSN 4820-00-042-3772 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-042-3772 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-042-3772. Primary manufacturer part number: 320-3-1.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Body Style: ANGLE
  • First End Style Designator: PLAIN
  • Valve Loading Method: SPRING
  • Media for Which Designed: HYDROCARBON FUELS AND OILS
  • Thread Size and Series/type Designator: 3/8-18 NPT FIRST END
  • Valve Stem Design: SINGLE SEAT
  • Material: STEEL STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Stem construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-042-3772, 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 Hydraulic Valve Division. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-042-3772
Primary Part Number320-3-1
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
StatusACTIVE
Body StyleANGLE
First End Style DesignatorPLAIN
Valve Loading MethodSPRING
Media for Which DesignedHYDROCARBON FUELS AND OILS
Thread Size and Series/type Designator3/8-18 NPT FIRST END
Valve Stem DesignSINGLE SEAT
MaterialSTEEL STEM
MaterialALUMINUM ALLOY BODY
End Connection Quantity2
Regulation TypeMANUAL SINGLE STAGE
FilterNOT INCLUDED
Second End Relationship with First EndIDENTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5975-00-022-1307435-0002-110 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems
5930-00-044-480165302-12559-103 INTERCHANGEABLE
Switch,pressure
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5935-00-201-5995 INTERCHANGEABLE
Connector,receptacle,electrical
2805-00-278-191343140A INTERCHANGEABLE
Ring,piston
Brinkley Technology Group Llc Dba Hercules Manufacturing
3110-00-435-891732031 INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5999-01-252-004332031 INTERCHANGEABLE
Clip,electrical
Afp Imaging Corp
5365-01-312-0230 INTERCHANGEABLE
Spacer,ring
6515-01-603-79801668H INTERCHANGEABLE
Suture,nonabsorbable,surgical
Ethicon Us Llc Div Ethicon
Cross-Reference Index
Part NumberManufacturer
320-3-1 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division (USA)
320-3-1 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
Related Parts
5975-00-022-1307INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
435-0002-110
5930-00-044-4801INTERCHANGEABLE
SWITCH,PRESSURE
65302-12559-103
5935-00-201-5995INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2805-00-278-1913INTERCHANGEABLE
RING,PISTON
43140A
3110-00-435-8917INTERCHANGEABLE
BEARING,BALL,ANNULAR
32031
5999-01-252-0043INTERCHANGEABLE
CLIP,ELECTRICAL
32031
5365-01-312-0230INTERCHANGEABLE
SPACER,RING
6515-01-603-7980INTERCHANGEABLE
SUTURE,NONABSORBABLE,SURGICAL
1668H

Frequently Asked Questions

What is NSN 4820-00-042-3772?

NSN 4820-00-042-3772 is a Valve,regulating,fluid Pressure, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-042-3772?

NSN 4820-00-042-3772 has 2 cross-referenced part numbers: 320-3-1 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division), 320-3-1 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

What NSN replaces 4820-00-042-3772?

There are 8 known substitutes for 4820-00-042-3772: 5975-00-022-1307, 5930-00-044-4801, 5935-00-201-5995 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 320-3-1?

Key specifications for 320-3-1: Body Style: ANGLE; First End Style Designator: PLAIN; Valve Loading Method: SPRING; Media for Which Designed: HYDROCARBON FUELS AND OILS. 12 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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