PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1124-4-81Valve,regulating,fluid Pressure

Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division · NSN 4820-00-167-4084 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-167-4084 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-167-4084. Primary manufacturer part number: 1124-4-81.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Valve Loading Method: SPRING
  • Filter: NOT INCLUDED
  • Thread Size and Series/type Designator: 7/16-20 UNF FIRST END
  • Second End Relationship with First End: IDENTICAL
  • Valve Loading Method: SPRING
  • End Connection Quantity: 2
  • Flow Control Device: PISTON, FREE TYPE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-167-4084, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division. Government technical data includes 22 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-167-4084
Primary Part Number1124-4-81
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
StatusACTIVE
Valve Loading MethodSPRING
FilterNOT INCLUDED
Thread Size and Series/type Designator7/16-20 UNF FIRST END
Second End Relationship with First EndIDENTICAL
Valve Loading MethodSPRING
End Connection Quantity2
Flow Control DevicePISTON, FREE TYPE
First End Thread DirectionRIGHT-HAND
FilterNOT INCLUDED
Second End Relationship with First EndIDENTICAL
Regulation TypeAUTOMATIC SINGLE STAGE
First End Thread Class3B
Remote Actuation MethodPISTON
First End Style DesignatorGASKET SEAL
First End Style DesignatorGASKET SEAL
First End Connection TypeTHREADED INTERNAL BOSS
Regulation TypeAUTOMATIC SINGLE STAGE
Thread Size and Series/type Designator7/16-20 UNF FIRST END
Flow Control DevicePISTON, FREE TYPE
End Connection Quantity2
Remote Actuation MethodPISTON
First End Thread Class3B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-959-3581 INTERCHANGEABLE
Bearing,ball,annular
5315-01-584-2744112448-1 INTERCHANGEABLE
Pin,quick Release
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
1124-4-81 PRIMARY Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
1124-4-81 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division (USA)
Related Parts
3110-00-959-3581INTERCHANGEABLE
BEARING,BALL,ANNULAR
5315-01-584-2744INTERCHANGEABLE
PIN,QUICK RELEASE
112448-1

Frequently Asked Questions

What is NSN 4820-00-167-4084?

NSN 4820-00-167-4084 is a Valve,regulating,fluid Pressure, manufactured by Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-167-4084?

NSN 4820-00-167-4084 has 2 cross-referenced part numbers: 1124-4-81 (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 1124-4-81 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Cartridge Systems Division).

What NSN replaces 4820-00-167-4084?

There are 2 known substitutes for 4820-00-167-4084: 3110-00-959-3581, 5315-01-584-2744. Verify interchangeability with system specifications before substitution.

What are the specifications of 1124-4-81?

Key specifications for 1124-4-81: Valve Loading Method: SPRING; Filter: NOT INCLUDED; Thread Size and Series/type Designator: 7/16-20 UNF FIRST END; Second End Relationship with First End: IDENTICAL. 22 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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