PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40401-409Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-459-4064 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-459-4064 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-459-4064. Primary manufacturer part number: 40401-409.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Body Style: STRAIGHT THRU
  • Material: NICKEL ALLOY STEM
  • Media for Which Designed: WATER, SALT
  • First End Connection Type: UNTHREADED INTERNAL PIPE
  • Filter: NOT INCLUDED
  • First End Style Designator: SOCKET
  • Regulation Type: AUTOMATIC SINGLE STAGE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Stem construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-459-4064, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-459-4064
Primary Part Number40401-409
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Body StyleSTRAIGHT THRU
MaterialNICKEL ALLOY STEM
Media for Which DesignedWATER, SALT
First End Connection TypeUNTHREADED INTERNAL PIPE
FilterNOT INCLUDED
First End Style DesignatorSOCKET
Regulation TypeAUTOMATIC SINGLE STAGE
First End Nominal Pipe Size Accommodated1.500 INCHES IN
Second End Relationship with First EndIDENTICAL
Maximum Inlet Pressure RatingERR-060
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Valve Loading MethodSPRING
Flow Control DeviceDISK
End Connection Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-183-9175 INTERCHANGEABLE
Ball,bearing
5935-00-828-093140-401-4 INTERCHANGEABLE
Connector,receptacle,electrical
Edinburgh Connector Company, Llc Dba Connectronics
4320-01-109-3017 INTERCHANGEABLE
Impeller,pump,centrifugal
5315-01-158-8152404014 INTERCHANGEABLE
Pin
Eaton Aerospace, Llc Dba Jackson South
5305-01-173-0762404014 INTERCHANGEABLE
Screw
Nsgdatacom Inc
4820-01-260-206940401-404 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-274-477840401-403 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-437-943840401-405 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-472-907840401-411 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-514-497840401-407 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40401-409 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40401-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
3110-00-183-9175INTERCHANGEABLE
BALL,BEARING
5935-00-828-0931INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
40-401-4
4320-01-109-3017INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
5315-01-158-8152INTERCHANGEABLE
PIN
404014
5305-01-173-0762INTERCHANGEABLE
SCREW
404014
4820-01-260-2069INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40401-404
4820-01-274-4778INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40401-403
4820-01-437-9438INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40401-405
4820-01-472-9078INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40401-411
4820-01-514-4978INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40401-407

Frequently Asked Questions

What is NSN 4820-01-459-4064?

NSN 4820-01-459-4064 is a Valve,regulating,fluid Pressure, 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 4820-01-459-4064?

NSN 4820-01-459-4064 has 2 cross-referenced part numbers: 40401-409 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40401-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-459-4064?

There are 10 known substitutes for 4820-01-459-4064: 3110-00-183-9175, 5935-00-828-0931, 4320-01-109-3017 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40401-409?

Key specifications for 40401-409: Body Style: STRAIGHT THRU; Material: NICKEL ALLOY STEM; Media for Which Designed: WATER, SALT; First End Connection Type: UNTHREADED INTERNAL PIPE. 15 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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