PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILV18559TYPE1STYLEADESIGNBPAT1Valve,radiator,heating

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4520-00-222-3483 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-222-3483 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-222-3483. Primary manufacturer part number: MILV18559TYPE1STYLEADESIGNBPAT1.
Features
  • Valve,radiator,heating — FSC 4520
  • Material: COPPER ALLOY 922 AND COPPER ALLOY 836 BODY
  • Material: COPPER ALLOY STEM
  • Material: COPPER ALLOY 922 AND COPPER ALLOY 836 SEAT
  • Nondefinitive Spec/std Data: 100 CLASS AND 1 PATTERN AND A STYLE AND 1-1/4 IN. SIZE AND 1 TYPE AND 1 SERVICE IN
  • Second End Nominal Pipe Size Accommodated: 1.250 INCHES IN
  • Flow Control Device: DISK, TOP GUIDED
  • Second End Style Designator: PLAIN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 and Copper Alloy 836 Body construction
General Description

The Valve,radiator,heating, cataloged under National Stock Number 4520-00-222-3483, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4520-00-222-3483
Primary Part NumberMILV18559TYPE1STYLEADESIGNBPAT1
Item NameValve,radiator,heating
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialCOPPER ALLOY 922 AND COPPER ALLOY 836 BODY
MaterialCOPPER ALLOY STEM
MaterialCOPPER ALLOY 922 AND COPPER ALLOY 836 SEAT
Nondefinitive Spec/std Data100 CLASS AND 1 PATTERN AND A STYLE AND 1-1/4 IN. SIZE AND 1 TYPE AND 1 SERVICE IN
Second End Nominal Pipe Size Accommodated1.250 INCHES IN
Flow Control DeviceDISK, TOP GUIDED
Second End Style DesignatorPLAIN
Second End Relationship with First EndNOT IDENTICAL
Valve Operation MethodWHEEL
First End Connection TypeTHREADED INTERNAL PIPE
End Connection Quantity2
Second End Thread DirectionRIGHT-HAND
First End Style DesignatorPLAIN
Body StyleSTRAIGHT THRU
Operating Pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
First End Thread DirectionRIGHT-HAND
Second End Connection TypeTHREADED EXTERNAL PIPE
First End Nominal Pipe Size Accommodated1.250 INCHES IN
Media for Which DesignedSTEAM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4520-00-204-0693 INTERCHANGEABLE
Valve,radiator,heating
4520-00-222-3475 INTERCHANGEABLE
Valve,radiator,heating
4520-00-222-3476 INTERCHANGEABLE
Valve,radiator,heating
4520-00-222-3477 INTERCHANGEABLE
Valve,radiator,heating
4520-00-222-3478 INTERCHANGEABLE
Valve,radiator,heating
4520-00-222-3480A-A-50456 INTERCHANGEABLE
Valve,radiator,heating
Federal Commercial Item Description Promulgated by General Services Administration Washington DC
4520-00-222-3481 INTERCHANGEABLE
Valve,radiator,heating
4520-00-540-4206 INTERCHANGEABLE
Valve,radiator,heating
4520-00-540-4214 INTERCHANGEABLE
Valve,radiator,heating
4520-00-540-4215 INTERCHANGEABLE
Valve,radiator,heating
Cross-Reference Index
Part NumberManufacturer
MILV18559TYPE1STYLEADESIGNBPAT1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
WWV160 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
4520-00-204-0693INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-222-3475INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-222-3476INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-222-3477INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-222-3478INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-222-3480INTERCHANGEABLE
VALVE,RADIATOR,HEATING
A-A-50456
4520-00-222-3481INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-540-4206INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-540-4214INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-540-4215INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-720-4735INTERCHANGEABLE
VALVE,RADIATOR,HEATING
4520-00-720-4736INTERCHANGEABLE
VALVE,RADIATOR,HEATING

Frequently Asked Questions

What is NSN 4520-00-222-3483?

NSN 4520-00-222-3483 is a Valve,radiator,heating, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-222-3483?

NSN 4520-00-222-3483 has 2 cross-referenced part numbers: MILV18559TYPE1STYLEADESIGNBPAT1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), WWV160 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 4520-00-222-3483?

There are 12 known substitutes for 4520-00-222-3483: 4520-00-204-0693, 4520-00-222-3475, 4520-00-222-3476 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILV18559TYPE1STYLEADESIGNBPAT1?

Key specifications for MILV18559TYPE1STYLEADESIGNBPAT1: Material: COPPER ALLOY 922 AND COPPER ALLOY 836 BODY; Material: COPPER ALLOY STEM; Material: COPPER ALLOY 922 AND COPPER ALLOY 836 SEAT; Nondefinitive Spec/std Data: 100 CLASS AND 1 PATTERN AND A STYLE AND 1-1/4 IN. SIZE AND 1 TYPE AND 1 SERVICE IN. 19 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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