PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11794NValve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-288-6642 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-288-6642 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-288-6642. Primary manufacturer part number: 11794N.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • First End Flange Shape Style: ROUND W/ BOLT HOLES
  • Media for Which Designed: STEAM
  • Material Document and Classification: FED STD 66 FED SPEC SINGLE MATERIAL RESPONSE OR AISI 410/SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE SEAT
  • Body Style: STRAIGHT THRU
  • First End Flange Outside Diameter: 6.125 INCHES NOMINAL IN
  • Second End Relationship with First End: IDENTICAL
  • Furnished Items: INTERNAL PILOT VALVE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 410 and Cobalt Alloy Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-288-6642, 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 30 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-288-6642
Primary Part Number11794N
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
First End Flange Shape StyleROUND W/ BOLT HOLES
Media for Which DesignedSTEAM
Material Document and ClassificationFED STD 66 FED SPEC SINGLE MATERIAL RESPONSE OR AISI 410/SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE SEAT
Body StyleSTRAIGHT THRU
First End Flange Outside Diameter6.125 INCHES NOMINAL IN
Second End Relationship with First EndIDENTICAL
Furnished ItemsINTERNAL PILOT VALVE
First End Flange Thickness0.562 INCHES NOMINAL IN
Face to Face Distance7.500 INCHES NOMINAL IN
Flow Control DeviceDISK, BEVEL SEAT, TOP GUIDED AND DISK, BEVEL SEAT, BOTTOM GUIDED
Valve Stem DesignSINGLE SEAT
Valve Loading MethodSPRING
End Connection Quantity2
Renewable Seat Ring TypeTHREADED
Maximum Inlet Pressure RatingERR-060
Regulation TypeMANUAL SINGLE STAGE
FilterNOT INCLUDED
MaterialSTEEL COMP 410 AND COBALT ALLOY SEAT
Remote Actuation MethodPISTON
MaterialSTEEL COMP 420 FLOW CONTROL DEVICE
Outlet Pressure Range15.0 TO 280.0 CAMERA MOUNT
First End Bolt Hole Quantity4
First End Bolt Circle Diameter4.500 INCHES NOMINAL IN
First End Connection TypePLAIN FACE FLANGE
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 420 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51420 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
First End Style DesignatorPLAIN
First End Bolt Hole Diameter0.875 INCHES NOMINAL IN
Manual Control MethodWHEEL
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY TYPE AND SIZE OF END CONNECTIONS,PRESSURE RATINGS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4820-00-287-3585303056601 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-288-7410 INTERCHANGEABLE
Valve,regulating,fluid Pressure
2815-00-457-0007199822 INTERCHANGEABLE
Piston,internal Combustion Engin
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
11794N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
L223F Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
L-3 300PSI Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-00-287-3585INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
303056601
4820-00-288-7410INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
2815-00-457-0007INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
199822

Frequently Asked Questions

What is NSN 4820-00-288-6642?

NSN 4820-00-288-6642 is a Valve,regulating,fluid 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 4820-00-288-6642?

NSN 4820-00-288-6642 has 3 cross-referenced part numbers: 11794N (Leslie Controls, Inc. Dba Leslie Controls Inc), L223F (Leslie Controls, Inc. Dba Leslie Controls Inc), L-3 300PSI (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-00-288-6642?

There are 3 known substitutes for 4820-00-288-6642: 4820-00-287-3585, 4820-00-288-7410, 2815-00-457-0007. Verify interchangeability with system specifications before substitution.

What are the specifications of 11794N?

Key specifications for 11794N: First End Flange Shape Style: ROUND W/ BOLT HOLES; Media for Which Designed: STEAM; Material Document and Classification: FED STD 66 FED SPEC SINGLE MATERIAL RESPONSE OR AISI 410/SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE SEAT; Body Style: STRAIGHT THRU. 30 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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