PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40053-9 PART 50146-15Regulator,thermostatic Temperatu

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-351-8303 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-351-8303 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-351-8303. Primary manufacturer part number: 40053-9 PART 50146-15.
Features
  • Regulator,thermostatic Temperatu — FSC 4820
  • Bulb Length: 11.500 INCHES NOMINAL IN
  • Bulb Diameter: 1.500 INCHES NOMINAL IN
  • Valve Size for Which Designed: 1.250 INCHES IN
  • Thermostat Type: BULB
  • 3 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Regulator,thermostatic Temperatu, cataloged under National Stock Number 4820-01-351-8303, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-01-351-8303
Primary Part Number40053-9 PART 50146-15
Item NameRegulator,thermostatic Temperatu
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Bulb Length11.500 INCHES NOMINAL IN
Bulb Diameter1.500 INCHES NOMINAL IN
Valve Size for Which Designed1.250 INCHES IN
Thermostat TypeBULB
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4140-00-128-0187400539 INTERCHANGEABLE
Impeller,fan,centrifugal
Eaton Aerospace, Llc Dba Jackson South
6210-00-891-51248-1930XP24 INTERCHANGEABLE
Light,indicator
Dialight Corporation
5930-01-044-4117 INTERCHANGEABLE
Push Button
4820-01-351-523240053-9 PART 40053-905 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40053-9 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40053-9 PART 50146-15 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
50146-15 PC 35 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4140-00-128-0187INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
400539
6210-00-891-5124INTERCHANGEABLE
LIGHT,INDICATOR
8-1930XP24
5930-01-044-4117INTERCHANGEABLE
PUSH BUTTON
4820-01-351-5232INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40053-9 PART 40053-905

Frequently Asked Questions

What is NSN 4820-01-351-8303?

NSN 4820-01-351-8303 is a Regulator,thermostatic Temperatu, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-351-8303?

NSN 4820-01-351-8303 has 3 cross-referenced part numbers: 40053-9 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40053-9 PART 50146-15 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 50146-15 PC 35 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-351-8303?

There are 4 known substitutes for 4820-01-351-8303: 4140-00-128-0187, 6210-00-891-5124, 5930-01-044-4117 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40053-9 PART 50146-15?

Key specifications for 40053-9 PART 50146-15: Bulb Length: 11.500 INCHES NOMINAL IN; Bulb Diameter: 1.500 INCHES NOMINAL IN; Valve Size for Which Designed: 1.250 INCHES IN; Thermostat Type: BULB. 4 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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