PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y402612708Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-143-3479 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-143-3479 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-143-3479. Primary manufacturer part number: Y402612708.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Valve Stem Design: SINGLE SEAT
  • Material Document and Classification: UNABLE TO DECODE
  • First End Flange Shape Style: ROUND W/ BOLT HOLES
  • First End Bolt Hole Diameter: 0.594 INCHES NOMINAL IN
  • First End Bolt Circle Diameter: 3.812 INCHES NOMINAL IN
  • Second End Relationship with First End: IDENTICAL
  • First End Bolt Hole Quantity: 6
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Polytetrafluoroethylene Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-143-3479, 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 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-143-3479
Primary Part NumberY402612708
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
Valve Stem DesignSINGLE SEAT
Material Document and ClassificationUNABLE TO DECODE
First End Flange Shape StyleROUND W/ BOLT HOLES
First End Bolt Hole Diameter0.594 INCHES NOMINAL IN
First End Bolt Circle Diameter3.812 INCHES NOMINAL IN
Second End Relationship with First EndIDENTICAL
First End Bolt Hole Quantity6
First End Flange Thickness0.375 INCHES NOMINAL IN
First End Style DesignatorPLAIN
First End Flange Outside Diameter3.563 INCHES NOMINAL IN
First End Connection TypePLAIN FACE FLANGE
Body StyleSTRAIGHT THRU
Media for Which DesignedWATER, OIL OR GAS
Flow Control DeviceDISK
MaterialPLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE
Face to Face Distance6.375 INCHES NOMINAL IN
Regulation TypeAUTOMATIC SINGLE STAGE
Maximum Inlet Pressure RatingERR-060
Renewable Seat Ring TypeTHREADED
Valve Loading MethodSPRING
MaterialBRONZE SEAT
Temp Rating450.0 FAHRENHEIT NOMINAL DEGF
FilterINCLUDED
End Connection Quantity2
Outlet Pressure Range25.0 TO 150.0 CAMERA MOUNT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4820-01-170-9792N55261 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-170-981415845N PIECE 8 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-170-983315845N PIECE 11 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-170-983415845N PIECE 29 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-170-9835N47475 INTERCHANGEABLE
Cap,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
15845NREVD Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
15845N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Y402612708 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
ULAYN-2X-1/2IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-01-170-9792INTERCHANGEABLE
SEAT,VALVE
N55261
4820-01-170-9814INTERCHANGEABLE
CAP,VALVE
15845N PIECE 8
4820-01-170-9833INTERCHANGEABLE
CAP,VALVE
15845N PIECE 11
4820-01-170-9834INTERCHANGEABLE
CAP,VALVE
15845N PIECE 29
4820-01-170-9835INTERCHANGEABLE
CAP,VALVE
N47475

Frequently Asked Questions

What is NSN 4820-01-143-3479?

NSN 4820-01-143-3479 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 4820-01-143-3479?

NSN 4820-01-143-3479 has 4 cross-referenced part numbers: 15845NREVD (Leslie Controls, Inc. Dba Leslie Controls Inc), 15845N (Leslie Controls, Inc. Dba Leslie Controls Inc), Y402612708 (Leslie Controls, Inc. Dba Leslie Controls Inc), ULAYN-2X-1/2IN (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-143-3479?

There are 5 known substitutes for 4820-01-143-3479: 4820-01-170-9792, 4820-01-170-9814, 4820-01-170-9833 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of Y402612708?

Key specifications for Y402612708: Valve Stem Design: SINGLE SEAT; Material Document and Classification: UNABLE TO DECODE; First End Flange Shape Style: ROUND W/ BOLT HOLES; First End Bolt Hole Diameter: 0.594 INCHES NOMINAL IN. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-143-3479 still in active supply?

NSN 4820-01-143-3479 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.
PartsTable Design LLC · partstable.com