PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U303171202Valve,regulating,fluid Pressure

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-007-4046 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-007-4046 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-007-4046. Primary manufacturer part number: U303171202.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Material: BRONZE SEAT
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
  • Material: STEEL COMP 302 STEM
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE STEM
  • Body Style: STRAIGHT THRU
  • First End Flange Outside Diameter: 5.000 INCHES NOMINAL IN
  • First End Bolt Hole Diameter: 0.625 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Bronze Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-007-4046, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN4820-01-007-4046
Primary Part NumberU303171202
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
MaterialBRONZE SEAT
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MaterialSTEEL COMP 302 STEM
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE STEM
Body StyleSTRAIGHT THRU
First End Flange Outside Diameter5.000 INCHES NOMINAL IN
First End Bolt Hole Diameter0.625 INCHES NOMINAL IN
Second End Relationship with First EndIDENTICAL
FilterNOT INCLUDED
Valve Loading MethodSPRING
First End Flange Shape StyleROUND W/ BOLT HOLES
First End Flange Thickness0.562 INCHES NOMINAL IN
Regulation TypeAUTOMATIC SINGLE STAGE
Outlet Pressure SettingERR-060
End Connection Quantity2
First End Bolt Circle Diameter3.875 INCHES NOMINAL IN
First End Connection TypePLAIN FACE FLANGE
First End Bolt Hole Quantity4
First End Style DesignatorPLAIN
Flow Control DeviceDISK, FLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
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.
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
4820-01-275-4219303056401 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
6210-01-278-5467 INTERCHANGEABLE
Light,indicator
Cross-Reference Index
Part NumberManufacturer
30-3-4-1 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
LAN5-1 1-2IN22PS Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
LA5-1 1/2IN Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
U303171202 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
303171202 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
LA5-1 1-2IN22PSI Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5999-00-035-8729INTERCHANGEABLE
CONTACT,ELECTRICAL
5995-00-171-1075INTERCHANGEABLE
LEAD,ELECTRICAL
30341
4820-00-287-3585INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
303056601
4810-00-382-9548INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
30341
6610-00-886-4967INTERCHANGEABLE
AMPLIFIER,CONTROL I
296
5935-01-026-0839INTERCHANGEABLE
JACK,TIP
402674
5910-01-176-4475INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
P19978-009-01
3040-01-224-2995INTERCHANGEABLE
SHAFT,STRAIGHT
21354 PC 6
4820-01-275-4219INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
303056401
6210-01-278-5467INTERCHANGEABLE
LIGHT,INDICATOR
4820-01-398-8452INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
LA-5 1-1/4IN THREADED
2530-01-540-0813INTERCHANGEABLE
PARTS KIT,POWER STEERING
30-341

Frequently Asked Questions

What is NSN 4820-01-007-4046?

NSN 4820-01-007-4046 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 4820-01-007-4046?

NSN 4820-01-007-4046 has 6 cross-referenced part numbers: 30-3-4-1 (Leslie Controls, Inc. Dba Leslie Controls Inc), LAN5-1 1-2IN22PS (Leslie Controls, Inc. Dba Leslie Controls Inc), LA5-1 1/2IN (Leslie Controls, Inc. Dba Leslie Controls Inc), U303171202 (Leslie Controls, Inc. Dba Leslie Controls Inc), 303171202 (Leslie Controls, Inc. Dba Leslie Controls Inc) and 1 more.

What NSN replaces 4820-01-007-4046?

There are 12 known substitutes for 4820-01-007-4046: 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 U303171202?

Key specifications for U303171202: Material: BRONZE SEAT; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE; Material: STEEL COMP 302 STEM; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30302 ASSN STD SINGLE MATERIAL RESPONSE STEM. 20 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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