PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49539Valve,regulating,fluid Pressure

Curtis-Toledo Distribution Inc Div Comp-Air Service Co. · NSN 4820-01-273-1322 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-273-1322 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-273-1322. Primary manufacturer part number: 49539.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Material: STEEL CORROSION RESISTING BODY
  • Flow Control Device: DISK
  • 3 verified cross-references
  • Primary manufacturer: Curtis-Toledo Distribution Inc Div Comp-Air Service Co.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-273-1322, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtis-Toledo Distribution Inc Div Comp-Air Service Co.. Government technical data includes 2 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-273-1322
Primary Part Number49539
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCurtis-Toledo Distribution Inc Div Comp-Air Service Co.
StatusACTIVE
MaterialSTEEL CORROSION RESISTING BODY
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-201-432749539 INTERCHANGEABLE
Connector,receptacle,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-467-1888495-39 INTERCHANGEABLE
Coil,radio Frequency
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5915-00-768-470749539 INTERCHANGEABLE
Filter,band Pass
L3harris Technologies, Inc. Div Space and Airborne Systems
5940-00-849-4479 INTERCHANGEABLE
Terminal,lug
Cross-Reference Index
Part NumberManufacturer
49539 PRIMARY Curtis-Toledo Distribution Inc Div Comp-Air Service Co. (USA)
49539 Compair Kellogg Div of Robertshaw Controls Co (USA)
49539 Leroi International Inc Dba Compair Leroi (USA)
Related Parts
5935-00-201-4327INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
49539
5950-00-467-1888INTERCHANGEABLE
COIL,RADIO FREQUENCY
495-39
5915-00-768-4707INTERCHANGEABLE
FILTER,BAND PASS
49539
5940-00-849-4479INTERCHANGEABLE
TERMINAL,LUG

Frequently Asked Questions

What is NSN 4820-01-273-1322?

NSN 4820-01-273-1322 is a Valve,regulating,fluid Pressure, manufactured by Curtis-Toledo Distribution Inc Div Comp-Air Service Co., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-273-1322?

NSN 4820-01-273-1322 has 3 cross-referenced part numbers: 49539 (Curtis-Toledo Distribution Inc Div Comp-Air Service Co.), 49539 (Compair Kellogg Div of Robertshaw Controls Co), 49539 (Leroi International Inc Dba Compair Leroi).

What NSN replaces 4820-01-273-1322?

There are 4 known substitutes for 4820-01-273-1322: 5935-00-201-4327, 5950-00-467-1888, 5915-00-768-4707 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 49539?

Key specifications for 49539: Material: STEEL CORROSION RESISTING BODY; Flow Control Device: DISK. 2 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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