PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U303056401Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-275-4219 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-275-4219 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-275-4219. Primary manufacturer part number: U303056401.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Material: STEEL CORROSION RESISTING SEAT
  • Temp Rating: 475.0 FAHRENHEIT MAXIMUM DEGF
  • First End Style Designator: PLAIN
  • Outlet Pressure Range: 10.0 TO 285.0 CAMERA MOUNT
  • Thread Size and Series/type Designator: 1-11.5 NPT FIRST END
  • Body Style: STRAIGHT THRU
  • Material: STEEL CORROSION RESISTING STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-275-4219, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-275-4219
Primary Part NumberU303056401
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusCANCELLED
MaterialSTEEL CORROSION RESISTING SEAT
Temp Rating475.0 FAHRENHEIT MAXIMUM DEGF
First End Style DesignatorPLAIN
Outlet Pressure Range10.0 TO 285.0 CAMERA MOUNT
Thread Size and Series/type Designator1-11.5 NPT FIRST END
Body StyleSTRAIGHT THRU
MaterialSTEEL CORROSION RESISTING STEM
Flow Control DeviceDISK
End Connection Quantity2
First End Connection TypeTHREADED INTERNAL PIPE
Regulation TypeAUTOMATIC SINGLE STAGE
Valve Loading MethodSPRING
Maximum Inlet Pressure RatingERR-060
FilterNOT INCLUDED
Second End Relationship with First EndIDENTICAL
Media for Which DesignedSTEAM OR AIR OR GAS
First End Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-035-8729 INTERCHANGEABLE
Contact,electrical
5995-00-171-107530341 INTERCHANGEABLE
Lead,electrical
Te Connectivity Corporation
4820-00-287-3585303056601 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4810-00-382-954830341 INTERCHANGEABLE
Sleeve and Slide,directional Con
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6610-00-886-4967296 INTERCHANGEABLE
Amplifier,control I
Power Control Devices, Inc.
4820-01-007-4046U303171202 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
5935-01-026-0839402674 INTERCHANGEABLE
Jack,tip
Aimtron Systems, Llc
5910-01-176-4475P19978-009-01 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Us Army Aviation and Missile Command
3040-01-224-299521354 PC 6 INTERCHANGEABLE
Shaft,straight
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
6210-01-278-5467 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
37 1IN AND 3466 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
L223FALTB Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
U303056401 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
303056401 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
30/3.4.1 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
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PARTS KIT,POWER STEERING
30-341

Frequently Asked Questions

What is NSN 4820-01-275-4219?

NSN 4820-01-275-4219 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 4820-01-275-4219?

NSN 4820-01-275-4219 has 5 cross-referenced part numbers: 37 1IN AND 3466 (Leslie Controls, Inc. Dba Leslie Controls Inc), L223FALTB (Leslie Controls, Inc. Dba Leslie Controls Inc), U303056401 (Leslie Controls, Inc. Dba Leslie Controls Inc), 303056401 (Leslie Controls, Inc. Dba Leslie Controls Inc), 30/3.4.1 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-275-4219?

There are 12 known substitutes for 4820-01-275-4219: 5999-00-035-8729, 5995-00-171-1075, 4820-00-287-3585 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of U303056401?

Key specifications for U303056401: Material: STEEL CORROSION RESISTING SEAT; Temp Rating: 475.0 FAHRENHEIT MAXIMUM DEGF; First End Style Designator: PLAIN; Outlet Pressure Range: 10.0 TO 285.0 CAMERA MOUNT. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-275-4219 still in active supply?

NSN 4820-01-275-4219 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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