PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40100-401Valve,regulating,temperature

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-493-1757 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-493-1757 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-493-1757. Primary manufacturer part number: 40100-401.
Features
  • Valve,regulating,temperature — FSC 4820
  • Material: NICKEL ALLOY STEM
  • Bulb Diameter: 0.750 INCHES NOMINAL IN
  • Temp Adjustability: ADJUSTABLE
  • Material: NICKEL ALLOY SEAT
  • Temp Rating: 100.0 FAHRENHEIT NOMINAL DEGF
  • End Connection Quantity: 2
  • Bulb Length: 12.000 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Stem construction
General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-493-1757, 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 13 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-493-1757
Primary Part Number40100-401
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialNICKEL ALLOY STEM
Bulb Diameter0.750 INCHES NOMINAL IN
Temp AdjustabilityADJUSTABLE
MaterialNICKEL ALLOY SEAT
Temp Rating100.0 FAHRENHEIT NOMINAL DEGF
End Connection Quantity2
Bulb Length12.000 INCHES NOMINAL IN
MaterialCOPPER ALLOY BULB
MaterialNICKEL ALLOY BODY
Flow Control DeviceDOUBLE SEATED
Body StyleSTRAIGHT THRU
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Thermostatic ElementLIQUID IMMERSION TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5210-00-243-33515210-00-243-3351 INTERCHANGEABLE
Rule,machinist's
General Services Administration Federal Supply Service
5940-00-345-9330401004 INTERCHANGEABLE
Cover,terminal Board
Raytheon Company Dba Raytheon
5980-00-491-564930-107344-1 INTERCHANGEABLE
Display,optoelectronic
General Dynamics Mission Systems, Inc.
5315-00-927-2084 INTERCHANGEABLE
Pin,cotter
5910-01-016-2394401004 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Telemechanics Inc
5920-01-108-3206 INTERCHANGEABLE
Fuse,indicator Alarm
5915-01-334-4791401004 INTERCHANGEABLE
Filter,band Suppression
Henderson H F Industries
5331-01-632-096640-1004 INTERCHANGEABLE
O-Ring
Herley Industries Inc
Cross-Reference Index
Part NumberManufacturer
40100-4 ASSY 40100-401 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40100-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40100-401 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5210-00-243-3351INTERCHANGEABLE
RULE,MACHINIST'S
5210-00-243-3351
5940-00-345-9330INTERCHANGEABLE
COVER,TERMINAL BOARD
401004
5980-00-491-5649INTERCHANGEABLE
DISPLAY,OPTOELECTRONIC
30-107344-1
5315-00-927-2084INTERCHANGEABLE
PIN,COTTER
5910-01-016-2394INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
401004
5920-01-108-3206INTERCHANGEABLE
FUSE,INDICATOR ALARM
5915-01-334-4791INTERCHANGEABLE
FILTER,BAND SUPPRESSION
401004
5331-01-632-0966INTERCHANGEABLE
O-RING
40-1004

Frequently Asked Questions

What is NSN 4820-01-493-1757?

NSN 4820-01-493-1757 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 4820-01-493-1757?

NSN 4820-01-493-1757 has 3 cross-referenced part numbers: 40100-4 ASSY 40100-401 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40100-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40100-401 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-493-1757?

There are 8 known substitutes for 4820-01-493-1757: 5210-00-243-3351, 5940-00-345-9330, 5980-00-491-5649 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40100-401?

Key specifications for 40100-401: Material: NICKEL ALLOY STEM; Bulb Diameter: 0.750 INCHES NOMINAL IN; Temp Adjustability: ADJUSTABLE; Material: NICKEL ALLOY SEAT. 14 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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