PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R21-04-000Valve,regulating,fluid Pressure

Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division · NSN 4820-01-213-1590 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-213-1590 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-213-1590. Primary manufacturer part number: R21-04-000.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • First End Connection Type: THREADED INTERNAL PIPE
  • Media for Which Designed: AIR
  • First End Style Designator: PLAIN
  • Body Style: STRAIGHT THRU
  • Second End Relationship with First End: IDENTICAL
  • Flow Control Device: PLUG
  • First End Thread Direction: RIGHT-HAND
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-213-1590, 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 Pneumatic Division. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-213-1590
Primary Part NumberR21-04-000
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
StatusCANCELLED
First End Connection TypeTHREADED INTERNAL PIPE
Media for Which DesignedAIR
First End Style DesignatorPLAIN
Body StyleSTRAIGHT THRU
Second End Relationship with First EndIDENTICAL
Flow Control DevicePLUG
First End Thread DirectionRIGHT-HAND
Thread Size and Series/type Designator1/2-14 NPT FIRST END
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Temp Rating175.0 FAHRENHEIT MAXIMUM DEGF
Outlet Pressure Range5.0 TO 160.0 CAMERA MOUNT
MaterialZINC ALLOY BODY
Maximum Inlet Pressure RatingERR-060
End Connection Quantity2
Regulation Type1ST STAGE MANUAL, 2ND STAGE AUTOMATIC
Manual Control MethodKNOB
Valve Loading MethodSPRING
FilterNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-054-5649 INTERCHANGEABLE
Screw,machine
3110-00-100-830323024 INTERCHANGEABLE
Bearing,roller,self-Aligning
Skf Usa Inc.
4320-00-300-098923024 INTERCHANGEABLE
Parts Kit,centrifugal Pump
Industrial Technologies and Services Llc
5945-00-502-6346723664 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6645-00-535-4375 INTERCHANGEABLE
Bushing,center
5950-00-648-088850-112085-4 INTERCHANGEABLE
Transformer,radio Frequency
General Dynamics Mission Systems, Inc.
4720-00-880-0066 INTERCHANGEABLE
Hose Assembly,nonmetallic
5330-00-916-448223024 INTERCHANGEABLE
Seal,pump,air Condi
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5935-01-004-524623024 INTERCHANGEABLE
Connector,receptacle,electrical
Sv Microwave, Inc. Div Sv Microwave
6665-01-176-7584 INTERCHANGEABLE
Filter Element,air Regulator
Cross-Reference Index
Part NumberManufacturer
C11417-1 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
R21-04-000 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division (USA)
9708-0527 PRIMARY Magnus Engineered Equipment Llc (USA)
8420-0278 Magnus Engineered Equipment Llc (USA)
R21-04-000 Parker Hannifin Corporation Dba Wilkerson Div Pneumatic Division North America (USA)
2302-4 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division (USA)
2302-4 Parker Hannifin Corporation Dba Wilkerson Div Pneumatic Division North America (USA)
C11417 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
Related Parts
5305-00-054-5649INTERCHANGEABLE
SCREW,MACHINE
3110-00-100-8303INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
23024
4320-00-300-0989INTERCHANGEABLE
PARTS KIT,CENTRIFUGAL PUMP
23024
5945-00-502-6346INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
723664
6645-00-535-4375INTERCHANGEABLE
BUSHING,CENTER
5950-00-648-0888INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
50-112085-4
4720-00-880-0066INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5330-00-916-4482INTERCHANGEABLE
SEAL,PUMP,AIR CONDI
23024
5935-01-004-5246INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
23024
6665-01-176-7584INTERCHANGEABLE
FILTER ELEMENT,AIR REGULATOR
4820-01-202-7732INTERCHANGEABLE
VALVE,ANGLE
23025
5310-01-417-7263INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 4820-01-213-1590?

NSN 4820-01-213-1590 is a Valve,regulating,fluid Pressure, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-213-1590?

NSN 4820-01-213-1590 has 8 cross-referenced part numbers: C11417-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), R21-04-000 (Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division), 9708-0527 (Magnus Engineered Equipment Llc), 8420-0278 (Magnus Engineered Equipment Llc), R21-04-000 (Parker Hannifin Corporation Dba Wilkerson Div Pneumatic Division North America) and 3 more.

What NSN replaces 4820-01-213-1590?

There are 12 known substitutes for 4820-01-213-1590: 5305-00-054-5649, 3110-00-100-8303, 4320-00-300-0989 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R21-04-000?

Key specifications for R21-04-000: First End Connection Type: THREADED INTERNAL PIPE; Media for Which Designed: AIR; First End Style Designator: PLAIN; Body Style: STRAIGHT THRU. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-213-1590 still in active supply?

NSN 4820-01-213-1590 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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