PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50164-20Regulator,thermostatic Temperatu

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-535-3651 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-535-3651 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-535-3651. Primary manufacturer part number: 50164-20.
Features
  • Regulator,thermostatic Temperatu — FSC 4820
  • 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 4820-01-535-3651, 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. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRegulator,thermostatic Temperatu
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN4820-01-535-3651
Primary Part Number50164-20
Item NameRegulator,thermostatic Temperatu
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-488-7272401454 INTERCHANGEABLE
Transformer,radio Frequency
Aimtron Systems, Llc
2915-00-611-2072401454 INTERCHANGEABLE
Seat,adjustable,dif
Woodward, Inc. Div Fuel Systems and Controls
2530-00-618-4597 INTERCHANGEABLE
Retainer,spring,tra
5895-01-124-3257 INTERCHANGEABLE
Demodulator
4820-01-535-363840145-402 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-535-3655382-08 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40145-4 PG2 PC 43 PN 50164-20 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
50164-20 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40145-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5950-00-488-7272INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
401454
2915-00-611-2072INTERCHANGEABLE
SEAT,ADJUSTABLE,DIF
401454
2530-00-618-4597INTERCHANGEABLE
RETAINER,SPRING,TRA
5895-01-124-3257INTERCHANGEABLE
DEMODULATOR
4820-01-535-3638INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-402
4820-01-535-3655INTERCHANGEABLE
STEM,FLUID VALVE
382-08

Frequently Asked Questions

What is NSN 4820-01-535-3651?

NSN 4820-01-535-3651 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 4820-01-535-3651?

NSN 4820-01-535-3651 has 3 cross-referenced part numbers: 40145-4 PG2 PC 43 PN 50164-20 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 50164-20 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40145-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-535-3651?

There are 6 known substitutes for 4820-01-535-3651: 5950-00-488-7272, 2915-00-611-2072, 2530-00-618-4597 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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