PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-V-2042DValve,regulating,system Pressure

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4820-01-395-2241 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-395-2241 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-395-2241. Primary manufacturer part number: MIL-V-2042D.
Features
  • Valve,regulating,system Pressure — FSC 4820
  • Filter: NOT INCLUDED
  • Maximum Inlet Pressure Rating: ERR-060
  • Body Style: STRAIGHT THRU
  • Valve Loading Method: SPRING
  • Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE STEM
  • First End Style Designator: SOCKET W/BRAZING RING
  • Flow Control Device: DIAPHRAGM
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy 400 Seat construction
General Description

The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-395-2241, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 19 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-395-2241
Primary Part NumberMIL-V-2042D
Item NameValve,regulating,system Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
FilterNOT INCLUDED
Maximum Inlet Pressure RatingERR-060
Body StyleSTRAIGHT THRU
Valve Loading MethodSPRING
Material Document and ClassificationQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE STEM
First End Style DesignatorSOCKET W/BRAZING RING
Flow Control DeviceDIAPHRAGM
Material Document and ClassificationQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE SEAT
MaterialNICKEL ALLOY 400 SEAT
MaterialCOPPER ALLOY 922 BODY
MaterialNICKEL ALLOY 400 STEM
First End Connection TypeUNTHREADED INTERNAL PIPE
Media for Which DesignedWATER, OIL OR GAS
End Connection Quantity2
Regulation TypeAUTOMATIC SINGLE STAGE
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
First End Nominal Pipe Size Accommodated0.375 INCHES IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Second End Relationship with First EndIDENTICAL
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
4820-01-379-462540444 ASSEMBLY 40444-905 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-395-526830809020 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Warren Controls, Inc.
Cross-Reference Index
Part NumberManufacturer
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
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
4820-01-379-4625INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40444 ASSEMBLY 40444-905
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 4820-01-395-2241?

NSN 4820-01-395-2241 is a Valve,regulating,system Pressure, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-395-2241?

NSN 4820-01-395-2241 has 2 cross-referenced part numbers: 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).

What NSN replaces 4820-01-395-2241?

There are 12 known substitutes for 4820-01-395-2241: 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 MIL-V-2042D?

Key specifications for MIL-V-2042D: Filter: NOT INCLUDED; Maximum Inlet Pressure Rating: ERR-060; Body Style: STRAIGHT THRU; Valve Loading Method: SPRING. 19 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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