PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40444 ASSEMBLY 40444-905Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-379-4625 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-379-4625 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-379-4625. Primary manufacturer part number: 40444 ASSEMBLY 40444-905.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Media for Which Designed: WATER, SALT
  • Remote Actuation Method: DIAPHRAGM
  • Flow Control Device: DISK
  • First End Nominal Pipe Size Accommodated: 1.500 INCHES IN
  • Body Style: STRAIGHT THRU
  • Specification/standard Data: 81349-MIL-V-2042D GOVERNMENT SPECIFICATION
  • Material: NICKEL ALLOY STEM
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 4820-01-379-4625, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN4820-01-379-4625
Primary Part Number40444 ASSEMBLY 40444-905
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Media for Which DesignedWATER, SALT
Remote Actuation MethodDIAPHRAGM
Flow Control DeviceDISK
First End Nominal Pipe Size Accommodated1.500 INCHES IN
Body StyleSTRAIGHT THRU
Specification/standard Data81349-MIL-V-2042D GOVERNMENT SPECIFICATION
MaterialNICKEL ALLOY STEM
Material Document and ClassificationMIL-D-17650 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
Nondefinitive Spec/std Data1 TYPE
MaterialRUBBER SYNTHETIC FLOW CONTROL DEVICE
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
Second End Relationship with First EndIDENTICAL
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Manual Control MethodSCREW
FilterNOT INCLUDED
Outlet Pressure Range85.0 TO 125.0 CAMERA MOUNT
First End Connection TypeUNTHREADED INTERNAL PIPE
First End Style DesignatorSOCKET W/BRAZING RING
End Connection Quantity2
Regulation Type1ST STAGE AUTOMATIC, 2ND STAGE MANUAL
Maximum Inlet Pressure RatingERR-060
Valve Loading MethodSPRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-01-140-0530YB2310F223X1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Leslie Controls, Inc. Dba Leslie Controls Inc
4820-01-156-037130813079 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Warren 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
4820-01-395-2241 INTERCHANGEABLE
Valve,regulating,system Pressure
4820-01-395-526830809020 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Warren Controls, Inc.
Cross-Reference Index
Part NumberManufacturer
40444 ASSEMBLY 40444-905 PRIMARY 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
MIL-V-2042 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
40444 ASSEMBLY 40444-904 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4820-01-140-0530INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
YB2310F223X1
4820-01-156-0371INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
30813079
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
4820-01-395-2241INTERCHANGEABLE
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 4820-01-379-4625?

NSN 4820-01-379-4625 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 4820-01-379-4625?

NSN 4820-01-379-4625 has 4 cross-referenced part numbers: 40444 ASSEMBLY 40444-905 (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), MIL-V-2042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 40444 ASSEMBLY 40444-904 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-379-4625?

There are 12 known substitutes for 4820-01-379-4625: 4820-01-140-0530, 4820-01-156-0371, 4820-01-187-2090 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40444 ASSEMBLY 40444-905?

Key specifications for 40444 ASSEMBLY 40444-905: Media for Which Designed: WATER, SALT; Remote Actuation Method: DIAPHRAGM; Flow Control Device: DISK; First End Nominal Pipe Size Accommodated: 1.500 INCHES IN. 23 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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