PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y303700610Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-00-435-7991 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-435-7991 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-435-7991. Primary manufacturer part number: Y303700610.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 6 verified cross-references
  • Primary manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-435-7991, 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. This item has 6 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.

Catalog Facts
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersLeslie Controls, Inc. Dba Leslie Controls Inc (CAGE 35795)
Technical Specifications
ParameterValue
NSN4820-00-435-7991
Primary Part NumberY303700610
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
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
4820-00-456-2074 INTERCHANGEABLE
Valve,regulating,fluid Pressure
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
17390N1IN600-100T450F Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
17390N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Y303700610 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
LNS-5 1 INCH Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
303700610 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
LNS5 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
4820-00-046-4617INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4310-00-306-1319INTERCHANGEABLE
CYLINDER SLEEVE
N11122
4820-00-433-5992INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-456-2074INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-573-7612INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-862-4691INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-873-8948INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700910
4820-00-935-5359INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-00-943-4036INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4820-01-086-8455INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303701121
4820-01-103-3296INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
12397N, LNS5, 50 TO 150PSI
4820-01-111-0784INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
Y303700611

Frequently Asked Questions

What is NSN 4820-00-435-7991?

NSN 4820-00-435-7991 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 4820-00-435-7991?

NSN 4820-00-435-7991 has 6 cross-referenced part numbers: 17390N1IN600-100T450F (Leslie Controls, Inc. Dba Leslie Controls Inc), 17390N (Leslie Controls, Inc. Dba Leslie Controls Inc), Y303700610 (Leslie Controls, Inc. Dba Leslie Controls Inc), LNS-5 1 INCH (Leslie Controls, Inc. Dba Leslie Controls Inc), 303700610 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-00-435-7991?

There are 12 known substitutes for 4820-00-435-7991: 4820-00-046-4617, 4310-00-306-1319, 4820-00-433-5992 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com