PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40053-403Valve,regulating,temperature

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-370-7979 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-370-7979 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-370-7979. Primary manufacturer part number: 40053-403.
Features
  • Valve,regulating,temperature — FSC 4820
  • Flow Control Device: POPPET
  • Material: COPPER ALLOY BODY
  • Temp Rating: 120.0 FAHRENHEIT NOMINAL DEGF
  • Temp Adjustability: ADJUSTABLE
  • First End Nominal Pipe Size Accommodated: 1.250 INCHES IN
  • Body Style: STRAIGHT THRU
  • First End Connection Type: UNTHREADED INTERNAL PIPE
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 4820-01-370-7979, 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 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-370-7979
Primary Part Number40053-403
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Flow Control DevicePOPPET
MaterialCOPPER ALLOY BODY
Temp Rating120.0 FAHRENHEIT NOMINAL DEGF
Temp AdjustabilityADJUSTABLE
First End Nominal Pipe Size Accommodated1.250 INCHES IN
Body StyleSTRAIGHT THRU
First End Connection TypeUNTHREADED INTERNAL PIPE
First End Style DesignatorREDUCED SOCKET WITH ONE BRAZING RING
Second End Relationship with First EndIDENTICAL
End Connection Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-001-1474400534 INTERCHANGEABLE
Terminal Board
Eaton Aerospace, Llc Dba Jackson South
4330-00-360-427527264 INTERCHANGEABLE
Filter Assembly,fluid
Arvinmeritor Inc
9905-01-107-699940053-4 INTERCHANGEABLE
Reflector,indicating,clearance
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
4820-01-310-123450002-29 INTERCHANGEABLE
Regulator,thermostatic Temperatu
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-423-874640053-410 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-423-8758245-00 INTERCHANGEABLE
Cap,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-435-280340053-409 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-436-871040062-405 INTERCHANGEABLE
Regulator,thermostatic Temperatu
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-450-8105 INTERCHANGEABLE
Regulator,thermostatic Temperatu
5340-01-512-6727121-00 INTERCHANGEABLE
Retainer,helical Compression Spr
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40053-4 ASSEMBLY 40053-403 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40053-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40053-403 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5940-00-001-1474INTERCHANGEABLE
TERMINAL BOARD
400534
4330-00-360-4275INTERCHANGEABLE
FILTER ASSEMBLY,FLUID
27264
9905-01-107-6999INTERCHANGEABLE
REFLECTOR,INDICATING,CLEARANCE
40053-4
4820-01-310-1234INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
50002-29
4820-01-423-8746INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40053-410
4820-01-423-8758INTERCHANGEABLE
CAP,VALVE
245-00
4820-01-435-2803INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40053-409
4820-01-436-8710INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
40062-405
4820-01-450-8105INTERCHANGEABLE
REGULATOR,THERMOSTATIC TEMPERATU
5340-01-512-6727INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
121-00
4820-01-512-9078INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40053-413
5315-01-631-7054INTERCHANGEABLE
PIN,GROOVED,HEADLESS
400534

Frequently Asked Questions

What is NSN 4820-01-370-7979?

NSN 4820-01-370-7979 is a Valve,regulating,temperature, 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 4820-01-370-7979?

NSN 4820-01-370-7979 has 3 cross-referenced part numbers: 40053-4 ASSEMBLY 40053-403 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40053-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40053-403 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-370-7979?

There are 12 known substitutes for 4820-01-370-7979: 5940-00-001-1474, 4330-00-360-4275, 9905-01-107-6999 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40053-403?

Key specifications for 40053-403: Flow Control Device: POPPET; Material: COPPER ALLOY BODY; Temp Rating: 120.0 FAHRENHEIT NOMINAL DEGF; Temp Adjustability: ADJUSTABLE. 10 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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