PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40174-101Valve,regulating,temperature

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-408-0183 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-408-0183 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-408-0183. Primary manufacturer part number: 40174-101.
Features
  • Valve,regulating,temperature — FSC 4820
  • Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END
  • End Connection Quantity: 3
  • Body Style: TEE
  • Flow Control Device: PISTON, TOP GUIDED
  • Temp Adjustability: ADJUSTABLE
  • First End Nominal Pipe Size Accommodated: 1.500 INCHES IN
  • Material: STEEL CORROSION RESISTING STEM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-408-0183, 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 12 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
NSN4820-01-408-0183
Primary Part Number40174-101
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Third End Relationship with Preceding EndsIDENTICAL WITH FIRST END
End Connection Quantity3
Body StyleTEE
Flow Control DevicePISTON, TOP GUIDED
Temp AdjustabilityADJUSTABLE
First End Nominal Pipe Size Accommodated1.500 INCHES IN
MaterialSTEEL CORROSION RESISTING STEM
MaterialCOPPER ALLOY BODY
First End Style DesignatorSOCKET W/BRAZING RING
Second End Relationship with First EndIDENTICAL
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
First End Connection TypeUNTHREADED INTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-470411776-13 INTERCHANGEABLE
Bearing,ball,annular
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
5340-00-598-2804GS17-110 INTERCHANGEABLE
Catch,elbow
L3harris Technologies, Inc Div Space & Airborne Systems
5330-00-649-913140174F INTERCHANGEABLE
Gasket
Griswold Industries Dba Cla-Val Co
5330-00-842-8250CA3960 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
5975-01-095-9429 INTERCHANGEABLE
Panel,blank
4820-01-315-259840174-401 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5820-01-329-5368 INTERCHANGEABLE
Standard Front Whee
5315-01-349-280740174 INTERCHANGEABLE
Pin,straight,headless
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5999-01-371-528440174 INTERCHANGEABLE
Shielding Gasket,electronic
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5310-01-557-083640174 INTERCHANGEABLE
Nut,plain,hexagon
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
40174-1 ASSY 40174-101 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40174 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40174-101 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
3110-00-156-4704INTERCHANGEABLE
BEARING,BALL,ANNULAR
11776-13
5340-00-598-2804INTERCHANGEABLE
CATCH,ELBOW
GS17-110
5330-00-649-9131INTERCHANGEABLE
GASKET
40174F
5330-00-842-8250INTERCHANGEABLE
GASKET
CA3960
5975-01-095-9429INTERCHANGEABLE
PANEL,BLANK
4820-01-315-2598INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40174-401
5820-01-329-5368INTERCHANGEABLE
STANDARD FRONT WHEE
5315-01-349-2807INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
40174
5999-01-371-5284INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
40174
5310-01-557-0836INTERCHANGEABLE
NUT,PLAIN,HEXAGON
40174
7520-01-570-6728INTERCHANGEABLE
PEN,BALL-POINT
SX-210 JETSTREAMBLUE
5340-01-609-0394INTERCHANGEABLE
CAP-PLUG,PROTECTIVE,DUST AND MOI
40174

Frequently Asked Questions

What is NSN 4820-01-408-0183?

NSN 4820-01-408-0183 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 4820-01-408-0183?

NSN 4820-01-408-0183 has 3 cross-referenced part numbers: 40174-1 ASSY 40174-101 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40174 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40174-101 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-408-0183?

There are 12 known substitutes for 4820-01-408-0183: 3110-00-156-4704, 5340-00-598-2804, 5330-00-649-9131 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40174-101?

Key specifications for 40174-101: Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END; End Connection Quantity: 3; Body Style: TEE; Flow Control Device: PISTON, TOP GUIDED. 12 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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