PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40406-202Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-156-0371 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-156-0371 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-156-0371. Primary manufacturer part number: 40406-202.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Second End Relationship with First End: IDENTICAL
  • Outlet Pressure Range: 25.0 TO 60.0 CAMERA MOUNT
  • Valve Loading Method: SPRING
  • End Connection Quantity: 2
  • First End Flange Outside Diameter: 7.688 INCHES NOMINAL IN
  • Body Style: STRAIGHT THRU
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-156-0371, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-156-0371
Primary Part Number40406-202
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
Second End Relationship with First EndIDENTICAL
Outlet Pressure Range25.0 TO 60.0 CAMERA MOUNT
Valve Loading MethodSPRING
End Connection Quantity2
First End Flange Outside Diameter7.688 INCHES NOMINAL IN
Body StyleSTRAIGHT THRU
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Material Document and ClassificationUNABLE TO DECODE
MaterialNICKEL ALLOY STEM
First End Style DesignatorPLAIN
First End Flange Thickness1.000 INCHES NOMINAL IN
Face to Face Distance14.500 INCHES NOMINAL IN
Regulation TypeAUTOMATIC SINGLE STAGE
FilterNOT INCLUDED
Criticality Code JustificationFEAT
Flow Control DeviceDISK
First End Bolt Hole Diameter0.688 INCHES NOMINAL IN
Media for Which DesignedWATER, SALT
First End Connection TypePLAIN FACE FLANGE
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
First End Flange Shape StyleROUND W/ BOLT HOLES
First End Bolt Hole Quantity8
Maximum Inlet Pressure RatingERR-060
First End Bolt Circle Diameter6.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-01-140-0530YB2310F223X1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-187-2090YB2310H722 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-213-758640404-206 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-230-8984YB2310F723 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-232-8136MDL 30 3IN INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-313-766740443-410 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-329-50088112301A INTERCHANGEABLE
Valve,regulating,fluid Pressure
Griswold Industries Dba Cla-Val Co
4820-01-379-462540444 ASSEMBLY 40444-905 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-395-2241 INTERCHANGEABLE
Valve,regulating,system Pressure
4820-01-395-526830809020 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Warren Controls, Inc.
Cross-Reference Index
Part NumberManufacturer
40406-02 4IN 25T60PSI Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40406-205 4IN 25T60PSI Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
30813270 Warren Controls, Inc. (USA)
2707-4IN250FLG25T060PSI Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
MIL-V-2042D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
30 4IN 25T60PSI AND N587 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
40406-202 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40406-02 REV D SH.2 NO.40406-202 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
ASTM F1370-92 American Society for Testing and Materials Dba Astm International (USA)
40406-202 4IN 25T60PSI Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40406-205 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
F1370-2MF2B American Society for Testing and Materials Dba Astm International (USA)
30813270REVG 25T060PSI 250FLGE Warren Controls, Inc. (USA)
30813079 PRIMARY Warren Controls, Inc. (USA)
Related Parts
4820-01-140-0530INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2310F223X1
4820-01-187-2090INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2310H722
4820-01-213-7586INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40404-206
4820-01-230-8984INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2310F723
4820-01-232-8136INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
MDL 30 3IN
4820-01-313-7667INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40443-410
4820-01-329-5008INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
8112301A
4820-01-379-4625INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40444 ASSEMBLY 40444-905
4820-01-395-2241INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
4820-01-395-5268INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
30809020
4820-01-546-8622INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40766-202
4820-01-546-8674INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40751-201

Frequently Asked Questions

What is NSN 4820-01-156-0371?

NSN 4820-01-156-0371 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: cancelled.

What are the part numbers for NSN 4820-01-156-0371?

NSN 4820-01-156-0371 has 14 cross-referenced part numbers: 40406-02 4IN 25T60PSI (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40406-205 4IN 25T60PSI (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 30813270 (Warren Controls, Inc.), 2707-4IN250FLG25T060PSI (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), MIL-V-2042D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 9 more.

What NSN replaces 4820-01-156-0371?

There are 12 known substitutes for 4820-01-156-0371: 4820-01-140-0530, 4820-01-187-2090, 4820-01-213-7586 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40406-202?

Key specifications for 40406-202: Second End Relationship with First End: IDENTICAL; Outlet Pressure Range: 25.0 TO 60.0 CAMERA MOUNT; Valve Loading Method: SPRING; End Connection Quantity: 2. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-156-0371 still in active supply?

NSN 4820-01-156-0371 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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