PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12397N, LNS5, 50 TO 150PSIValve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-103-3296 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-103-3296 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-103-3296. Primary manufacturer part number: 12397N, LNS5, 50 TO 150PSI.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Material Document and Classification: UNABLE TO DECODE
  • Valve Loading Method: SPRING
  • Material: STEEL FLOW CONTROL DEVICE
  • Media for Which Designed: STEAM
  • First End Raised Face Height: 0.250 INCHES NOMINAL IN
  • First End Bolt Hole Quantity: 8
  • First End Flange Thickness: 0.562 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-103-3296, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 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
NSN4820-01-103-3296
Primary Part Number12397N, LNS5, 50 TO 150PSI
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
Material Document and ClassificationUNABLE TO DECODE
Valve Loading MethodSPRING
MaterialSTEEL FLOW CONTROL DEVICE
Media for Which DesignedSTEAM
First End Raised Face Height0.250 INCHES NOMINAL IN
First End Bolt Hole Quantity8
First End Flange Thickness0.562 INCHES NOMINAL IN
Second End Relationship with First EndIDENTICAL
First End Flange Outside Diameter6.500 INCHES NOMINAL IN
Body StyleSTRAIGHT THRU
First End Flange Shape StyleROUND W/ BOLT HOLES
First End Style DesignatorRAISED
Face to Face Distance10.250 INCHES NOMINAL IN
First End Bolt Hole Diameter0.875 INCHES NOMINAL IN
First End Connection TypeRAISED FACE FLANGE
First End Raised Face Diameter3.625 INCHES NOMINAL IN
First End Bolt Circle Diameter5.000 INCHES NOMINAL IN
Flow Control DeviceDISK, GUIDED
End Connection Quantity2
FilterNOT INCLUDED
Outlet Pressure Range100.0 TO 450.0 CAMERA MOUNT
MaterialSTEEL UNS J03002 BODY
Maximum Inlet Pressure RatingERR-060
Nondefinitive Spec/std DataA CLASS AND D COMPOSITION
Regulation TypeAUTOMATIC SINGLE STAGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-046-4617 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4310-00-306-1319N11122 INTERCHANGEABLE
Cylinder Sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-433-5992 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-435-7991Y303700610 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-573-7612 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-862-4691 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-873-8948Y303700910 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-00-935-5359 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-00-943-4036 INTERCHANGEABLE
Valve,regulating,fluid Pressure
4820-01-086-8455Y303701121 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
12397N, LNS5, 50 TO 150PSI PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
12397N, LNS3, 50 TO 150PSI Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
MIL-V-17848 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LNS3-2IN 50 T0 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390N LNS-5 2IN FLGE PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
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4820-00-435-7991INTERCHANGEABLE
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4820-00-573-7612INTERCHANGEABLE
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4820-00-862-4691INTERCHANGEABLE
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4820-00-873-8948INTERCHANGEABLE
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Y303700910
4820-00-935-5359INTERCHANGEABLE
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4820-00-943-4036INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-086-8455INTERCHANGEABLE
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4820-01-111-0784INTERCHANGEABLE
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Frequently Asked Questions

What is NSN 4820-01-103-3296?

NSN 4820-01-103-3296 is a Valve,regulating,fluid Pressure, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-103-3296?

NSN 4820-01-103-3296 has 6 cross-referenced part numbers: 12397N, LNS5, 50 TO 150PSI (Leslie Controls, Inc. Dba Leslie Controls Inc), 12397N, LNS3, 50 TO 150PSI (Leslie Controls, Inc. Dba Leslie Controls Inc), MIL-V-17848 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), LNS3-2IN 50 T0 (Leslie Controls, Inc. Dba Leslie Controls Inc), 17390N LNS-5 2IN FLGE (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-01-103-3296?

There are 12 known substitutes for 4820-01-103-3296: 4820-00-046-4617, 4310-00-306-1319, 4820-00-433-5992 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12397N, LNS5, 50 TO 150PSI?

Key specifications for 12397N, LNS5, 50 TO 150PSI: Material Document and Classification: UNABLE TO DECODE; Valve Loading Method: SPRING; Material: STEEL FLOW CONTROL DEVICE; Media for Which Designed: STEAM. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-103-3296 still in active supply?

NSN 4820-01-103-3296 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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