PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Y205664906+N137140020+N68196Valve,regulating,temperature

Leslie Controls, Inc. Dba Leslie Controls Inc · NSN 4820-01-197-2021 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-197-2021 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-197-2021. Primary manufacturer part number: Y205664906+N137140020+N68196.
Features
  • Valve,regulating,temperature — FSC 4820
  • Material: COPPER ALLOY BODY
  • Thread Size and Series/type Designator: 0.500-20 UNF FIRST END
  • Thermostatic Element: LIQUID IMMERSION TYPE
  • Capillary Tube Length: 120.000 INCHES NOMINAL IN
  • Material: COPPER ALLOY BULB
  • Bulb Length: 4.000 INCHES NOMINAL IN
  • End Connection Quantity: 2
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-197-2021, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-197-2021
Primary Part NumberY205664906+N137140020+N68196
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
MaterialCOPPER ALLOY BODY
Thread Size and Series/type Designator0.500-20 UNF FIRST END
Thermostatic ElementLIQUID IMMERSION TYPE
Capillary Tube Length120.000 INCHES NOMINAL IN
MaterialCOPPER ALLOY BULB
Bulb Length4.000 INCHES NOMINAL IN
End Connection Quantity2
First End Style DesignatorGASKET SEAL
Second End Relationship with First EndIDENTICAL
Temp AdjustabilityADJUSTABLE
Flow Control DeviceBELLOWS
Body StyleSTRAIGHT THRU
First End Thread DirectionRIGHT-HAND
First End Connection TypeTHREADED INTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5360-00-924-0154N35888 INTERCHANGEABLE
Spring,pilot Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-189-8678N11312 INTERCHANGEABLE
Pilot Valve Complete
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-189-8814N35881 INTERCHANGEABLE
Stem,fluid Valve
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
BPN-1 W/ELMT 137-14-00-20 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
22234N Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
BPN-2W/137-14-00-20/68196 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Y205664906+N137140020+N68196 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Related Parts
5360-00-924-0154INTERCHANGEABLE
SPRING,PILOT STEM
N35888
4820-01-189-8678INTERCHANGEABLE
PILOT VALVE COMPLETE
N11312
4820-01-189-8814INTERCHANGEABLE
STEM,FLUID VALVE
N35881

Frequently Asked Questions

What is NSN 4820-01-197-2021?

NSN 4820-01-197-2021 is a Valve,regulating,temperature, 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 4820-01-197-2021?

NSN 4820-01-197-2021 has 4 cross-referenced part numbers: BPN-1 W/ELMT 137-14-00-20 (Leslie Controls, Inc. Dba Leslie Controls Inc), 22234N (Leslie Controls, Inc. Dba Leslie Controls Inc), BPN-2W/137-14-00-20/68196 (Leslie Controls, Inc. Dba Leslie Controls Inc), Y205664906+N137140020+N68196 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-197-2021?

There are 3 known substitutes for 4820-01-197-2021: 5360-00-924-0154, 4820-01-189-8678, 4820-01-189-8814. Verify interchangeability with system specifications before substitution.

What are the specifications of Y205664906+N137140020+N68196?

Key specifications for Y205664906+N137140020+N68196: Material: COPPER ALLOY BODY; Thread Size and Series/type Designator: 0.500-20 UNF FIRST END; Thermostatic Element: LIQUID IMMERSION TYPE; Capillary Tube Length: 120.000 INCHES NOMINAL IN. 14 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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