PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1/4 IN. CLASS A-2 30-150 PSIValve,regulating,system Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-433-2644 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-433-2644 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-433-2644. Primary manufacturer part number: 1/4 IN. CLASS A-2 30-150 PSI.
Features
  • Valve,regulating,system Pressure — FSC 4820
  • Flow Control Device: DISK
  • Regulation Type: AUTOMATIC SINGLE STAGE
  • Filter: NOT INCLUDED
  • First End Style Designator: SOCKET W/BRAZING RING
  • Material: ALUMINUM BODY
  • Second End Relationship with First End: IDENTICAL
  • Outlet Pressure Range: 30.0 TO 150.0 CAMERA MOUNT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Body construction
General Description

The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-433-2644, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-433-2644
Primary Part Number1/4 IN. CLASS A-2 30-150 PSI
Item NameValve,regulating,system Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Flow Control DeviceDISK
Regulation TypeAUTOMATIC SINGLE STAGE
FilterNOT INCLUDED
First End Style DesignatorSOCKET W/BRAZING RING
MaterialALUMINUM BODY
Second End Relationship with First EndIDENTICAL
Outlet Pressure Range30.0 TO 150.0 CAMERA MOUNT
Body StyleSTRAIGHT THRU
First End Connection TypeTHREADED INTERNAL PIPE
End Connection Quantity2
Media for Which DesignedAIR
Valve Loading MethodSPRING
Thread Size and Series/type Designator1/4-18 NPT FIRST END
Remote Actuation MethodDIAPHRAGM
Temp Rating150.0 FAHRENHEIT NOMINAL DEGF
First End Thread DirectionRIGHT-HAND
Mounting FacilityBRACKET
MaterialALUMINUM SEAT
Maximum Inlet Pressure RatingERR-060
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-089-8868SCDL339510 INTERCHANGEABLE
Connector,plug,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5940-00-185-6673GB-1 INTERCHANGEABLE
Splice,conductor
GB Electrical Inc
6110-00-346-3113 INTERCHANGEABLE
Contact Set,motor Starter
5365-00-575-514830141 INTERCHANGEABLE
Spacer,sleeve
Danuser Machine Co
6210-00-935-6980NAED 320990 INTERCHANGEABLE
Lens,light
Gte Products Corp Sylvania Miniature Lighting Div
5310-01-112-437030141 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5998-01-120-7693 INTERCHANGEABLE
Circuit Card Assembly
5310-01-263-82600030140110 INTERCHANGEABLE
Nut,plain,hexagon
Newton Instrument Company Dba Newton Instrument Co
6210-01-359-159830141 INTERCHANGEABLE
Lens,light
Osram Sylvania Ltd
4730-01-386-0591190103-3/4-16 INTERCHANGEABLE
Elbow,flange to Hose
Danfoss Power Solutions II, Llc
Cross-Reference Index
Part NumberManufacturer
1/4" CLASS A-2 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
1/4 IN. CLASS A-2 30-150 PSI PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
30/1.4.1 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5935-00-089-8868INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
SCDL339510
5940-00-185-6673INTERCHANGEABLE
SPLICE,CONDUCTOR
GB-1
6110-00-346-3113INTERCHANGEABLE
CONTACT SET,MOTOR STARTER
5365-00-575-5148INTERCHANGEABLE
SPACER,SLEEVE
30141
6210-00-935-6980INTERCHANGEABLE
LENS,LIGHT
NAED 320990
5310-01-112-4370INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
30141
5998-01-120-7693INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5310-01-263-8260INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0030140110
6210-01-359-1598INTERCHANGEABLE
LENS,LIGHT
30141
4730-01-386-0591INTERCHANGEABLE
ELBOW,FLANGE TO HOSE
190103-3/4-16
5935-01-434-0337INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
30141R2400-55
4820-01-506-4495INTERCHANGEABLE
STEM,FLUID VALVE
30005

Frequently Asked Questions

What is NSN 4820-01-433-2644?

NSN 4820-01-433-2644 is a Valve,regulating,system Pressure, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-433-2644?

NSN 4820-01-433-2644 has 3 cross-referenced part numbers: 1/4" CLASS A-2 (Leslie Controls, Inc. Dba Leslie Controls Inc), 1/4 IN. CLASS A-2 30-150 PSI (Leslie Controls, Inc. Dba Leslie Controls Inc), 30/1.4.1 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-433-2644?

There are 12 known substitutes for 4820-01-433-2644: 5935-00-089-8868, 5940-00-185-6673, 6110-00-346-3113 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1/4 IN. CLASS A-2 30-150 PSI?

Key specifications for 1/4 IN. CLASS A-2 30-150 PSI: Flow Control Device: DISK; Regulation Type: AUTOMATIC SINGLE STAGE; Filter: NOT INCLUDED; First End Style Designator: SOCKET W/BRAZING RING. 20 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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