PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

802077-004-000Valve,safety Relief

Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div · NSN 4820-01-274-9150 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-274-9150 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-274-9150. Primary manufacturer part number: 802077-004-000.
Features
  • Valve,safety Relief — FSC 4820
  • Adjustable Pressure Range: +5.0 TO 40.0 POUNDS PER SQUARE INCH LBS
  • 4 verified cross-references
  • Primary manufacturer: Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-274-9150, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div. Government technical data includes 1 verified specification, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-274-9150
Primary Part Number802077-004-000
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div
StatusACTIVE
Adjustable Pressure Range+5.0 TO 40.0 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-244-3343784 INTERCHANGEABLE
Gasket
Skil Corp
5940-00-258-1932784 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5985-00-435-9756784 INTERCHANGEABLE
Attenuator,variable
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
6150-00-760-0651784 INTERCHANGEABLE
Bus,conductor
Janco Corporation Dba Janco Corp Div Mason Controls
4730-00-873-3864L040078PEA INTERCHANGEABLE
Coupling,clamp,pipe
Victaulic Company of America Inc Dba Victaulic Company of America
5340-01-100-8184PMT-17-6M2 INTERCHANGEABLE
Standoff,threaded,spacing
Armel De Llc Dba Armel Electronics
5975-01-371-0176 INTERCHANGEABLE
Conduit,nonmetallic,flexible
6220-01-388-3788784-1 INTERCHANGEABLE
Control,electric Light
Astronics Advanced Electronic Systems Corp. Dba Astronics Advanced Electronic Systems
6620-01-471-209807885-00 INTERCHANGEABLE
Indicator,pressure
Maxima Technologies & Systems Llc
Cross-Reference Index
Part NumberManufacturer
802077-004-000 Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div (USA)
2D62145PK Northrop Grumman Systems Corporation Div Marine Systems (USA)
78-4 Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div (USA)
2D62145PK-001 Northrop Grumman Systems Corporation Div Marine Systems (USA)
Related Parts
5330-00-244-3343INTERCHANGEABLE
GASKET
784
5940-00-258-1932INTERCHANGEABLE
TERMINAL,STUD
784
5985-00-435-9756INTERCHANGEABLE
ATTENUATOR,VARIABLE
784
6150-00-760-0651INTERCHANGEABLE
BUS,CONDUCTOR
784
4730-00-873-3864INTERCHANGEABLE
COUPLING,CLAMP,PIPE
L040078PEA
5340-01-100-8184INTERCHANGEABLE
STANDOFF,THREADED,SPACING
PMT-17-6M2
5975-01-371-0176INTERCHANGEABLE
CONDUIT,NONMETALLIC,FLEXIBLE
6220-01-388-3788INTERCHANGEABLE
CONTROL,ELECTRIC LIGHT
784-1
6620-01-471-2098INTERCHANGEABLE
INDICATOR,PRESSURE
07885-00

Frequently Asked Questions

What is NSN 4820-01-274-9150?

NSN 4820-01-274-9150 is a Valve,safety Relief, manufactured by Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-274-9150?

NSN 4820-01-274-9150 has 4 cross-referenced part numbers: 802077-004-000 (Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div), 2D62145PK (Northrop Grumman Systems Corporation Div Marine Systems), 78-4 (Dresser Industries Inc Masoneilan North American Opns Dresser Valve and Controls Div), 2D62145PK-001 (Northrop Grumman Systems Corporation Div Marine Systems).

What NSN replaces 4820-01-274-9150?

There are 9 known substitutes for 4820-01-274-9150: 5330-00-244-3343, 5940-00-258-1932, 5985-00-435-9756 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 802077-004-000?

Key specifications for 802077-004-000: Adjustable Pressure Range: +5.0 TO 40.0 POUNDS PER SQUARE INCH LBS. 1 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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