PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

VS4030-001Valve,relief,pressure and Temper

Robertshaw Controls Co Uni-Line Div · NSN 4820-00-223-4539 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-223-4539 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-223-4539. Primary manufacturer part number: VS4030-001.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • Temp Control Device Type: THERMOSTATIC
  • First End Thread Direction: RIGHT-HAND
  • Bulb Length: 0.875 INCHES NOMINAL IN
  • Body Style: STRAIGHT THRU
  • Material: ALUMINUM ALLOY BODY
  • Second End Relationship with First End: IDENTICAL
  • Bulb Diameter: 0.172 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Alloy Body construction
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-223-4539, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Robertshaw Controls Co Uni-Line Div. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN4820-00-223-4539
Primary Part NumberVS4030-001
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRobertshaw Controls Co Uni-Line Div
StatusCANCELLED
Temp Control Device TypeTHERMOSTATIC
First End Thread DirectionRIGHT-HAND
Bulb Length0.875 INCHES NOMINAL IN
Body StyleSTRAIGHT THRU
MaterialALUMINUM ALLOY BODY
Second End Relationship with First EndIDENTICAL
Bulb Diameter0.172 INCHES NOMINAL IN
Flow Control DeviceDISK, CIRCULAR
Temp AdjustabilityNOT ADJUSTABLE
End Connection Quantity2
First End Nominal Pipe Size Accommodated0.500 INCHES IN
First End Style DesignatorPLAIN
First End Connection TypeTHREADED INTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-188-3513SPP72-0003 INTERCHANGEABLE
Plug,pipe
Ward Leonard Ct Llc
1560-00-210-931611523 INTERCHANGEABLE
Fairing Assembly,wi
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5340-00-392-7816SM-B-157288 INTERCHANGEABLE
Plate,mending
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5360-00-485-590311523 INTERCHANGEABLE
Spring,helical,compression
Triumph Thermal Systems - Maryland, Inc.
5935-00-496-9385 INTERCHANGEABLE
Connector,plug,electrical
4730-00-541-077111523 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Mission Systems Orchard Park Inc
5935-00-557-4410 INTERCHANGEABLE
Socket,plug-in Electronic Compon
4210-00-573-9232CS4210-SR-0700 INTERCHANGEABLE
Carriage Assembly,compressor
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
4940-00-640-3987 INTERCHANGEABLE
Filling Machine,rotary Brush
4935-00-841-642511523 INTERCHANGEABLE
Board Assembly
Emcore Corporation Div Concord Division
Cross-Reference Index
Part NumberManufacturer
Z76301-48 Robertshaw Controls Co Executive Office (USA)
VS4030-001 PRIMARY Robertshaw Controls Co Uni-Line Div (USA)
11523 PRIMARY G.s. Blodgett, Llc Div Blodgett (USA)
Related Parts
4730-00-188-3513INTERCHANGEABLE
PLUG,PIPE
SPP72-0003
1560-00-210-9316INTERCHANGEABLE
FAIRING ASSEMBLY,WI
11523
5340-00-392-7816INTERCHANGEABLE
PLATE,MENDING
SM-B-157288
5360-00-485-5903INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11523
5935-00-496-9385INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4730-00-541-0771INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
11523
5935-00-557-4410INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
4210-00-573-9232INTERCHANGEABLE
CARRIAGE ASSEMBLY,COMPRESSOR
CS4210-SR-0700
4940-00-640-3987INTERCHANGEABLE
FILLING MACHINE,ROTARY BRUSH
4935-00-841-6425INTERCHANGEABLE
BOARD ASSEMBLY
11523
9340-00-962-0483INTERCHANGEABLE
GLASS,LAMINATED
10187311
6210-00-982-1595INTERCHANGEABLE
LIGHT,INDICATOR

Frequently Asked Questions

What is NSN 4820-00-223-4539?

NSN 4820-00-223-4539 is a Valve,relief,pressure and Temper, manufactured by Robertshaw Controls Co Uni-Line Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-223-4539?

NSN 4820-00-223-4539 has 3 cross-referenced part numbers: Z76301-48 (Robertshaw Controls Co Executive Office), VS4030-001 (Robertshaw Controls Co Uni-Line Div), 11523 (G.s. Blodgett, Llc Div Blodgett).

What NSN replaces 4820-00-223-4539?

There are 12 known substitutes for 4820-00-223-4539: 4730-00-188-3513, 1560-00-210-9316, 5340-00-392-7816 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of VS4030-001?

Key specifications for VS4030-001: Temp Control Device Type: THERMOSTATIC; First End Thread Direction: RIGHT-HAND; Bulb Length: 0.875 INCHES NOMINAL IN; Body Style: STRAIGHT THRU. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-223-4539 still in active supply?

NSN 4820-00-223-4539 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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