PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-9-3EValve,gate

Gas Equipment Engineering Corporation, the Dba Geeco · NSN 4820-00-287-3766 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-287-3766 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-287-3766. Primary manufacturer part number: 3-9-3E.
Features
  • Valve,gate — FSC 4820
  • Bonnet Attachment Method: THREADED
  • Maximum Operating Temp and Media for Which Designed: 335.0 FAHRENHEIT STEAM AND 335.0 FAHRENHEIT WATER, FRESH AND 335.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
  • Stem Type: NONRISING
  • Nominal Thread Size: 0.750 INCHES IN
  • Operating Pressure and Type: 100.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) NATURAL GAS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
  • Material: COPPER ALLOY BODY
  • Thread Series Designator: NPT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-00-287-3766, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Gas Equipment Engineering Corporation, the Dba Geeco. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-287-3766
Primary Part Number3-9-3E
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGas Equipment Engineering Corporation, the Dba Geeco
StatusCANCELLED
Bonnet Attachment MethodTHREADED
Maximum Operating Temp and Media for Which Designed335.0 FAHRENHEIT STEAM AND 335.0 FAHRENHEIT WATER, FRESH AND 335.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
Stem TypeNONRISING
Nominal Thread Size0.750 INCHES IN
Operating Pressure and Type100.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) FRESH WATER MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) NATURAL GAS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
MaterialCOPPER ALLOY BODY
Thread Series DesignatorNPT
Bonnet TypeINSIDE SCREW
Valve Operation MethodMANUAL
Thread Quantity Per Inch14
MaterialCOPPER ALLOY STEM
Features ProvidedBONNET PACKING
MaterialCOPPER ALLOY SEAT
MaterialCOPPER ALLOY DISK
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5950-00-302-3986ST5M1236-001 INTERCHANGEABLE
Transformer,power Autotransforme
The Boeing Company Div Defense
3030-01-111-77708084-0097X1 INTERCHANGEABLE
Belt,v
Gates Corporation
8465-01-589-163841034 INTERCHANGEABLE
Hydration System
Camelbak Products, Llc Dba Camelbak
Cross-Reference Index
Part NumberManufacturer
80010023 D & J Parts Inc (USA)
3-9-3E PRIMARY Gas Equipment Engineering Corporation, the Dba Geeco (USA)
410SIZE3-4 PRIMARY Crane Co Div Valve Div (USA)
80010023 PRIMARY L & L Boiler Maintenance Inc (USA)
410 3-4 PRIMARY Crane Co Div Valve Div (USA)
410 Crane Co Div Valve Div (USA)
410 3-4NPT Crane Co Div Valve Div (USA)
Related Parts
5950-00-302-3986INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
ST5M1236-001
3030-01-111-7770INTERCHANGEABLE
BELT,V
8084-0097X1
8465-01-589-1638INTERCHANGEABLE
HYDRATION SYSTEM
41034

Frequently Asked Questions

What is NSN 4820-00-287-3766?

NSN 4820-00-287-3766 is a Valve,gate, manufactured by Gas Equipment Engineering Corporation, the Dba Geeco, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-287-3766?

NSN 4820-00-287-3766 has 7 cross-referenced part numbers: 80010023 (D & J Parts Inc), 3-9-3E (Gas Equipment Engineering Corporation, the Dba Geeco), 410SIZE3-4 (Crane Co Div Valve Div), 80010023 (L & L Boiler Maintenance Inc), 410 3-4 (Crane Co Div Valve Div) and 2 more.

What NSN replaces 4820-00-287-3766?

There are 3 known substitutes for 4820-00-287-3766: 5950-00-302-3986, 3030-01-111-7770, 8465-01-589-1638. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-9-3E?

Key specifications for 3-9-3E: Bonnet Attachment Method: THREADED; Maximum Operating Temp and Media for Which Designed: 335.0 FAHRENHEIT STEAM AND 335.0 FAHRENHEIT WATER, FRESH AND 335.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF; Stem Type: NONRISING; Nominal Thread Size: 0.750 INCHES IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-287-3766 still in active supply?

NSN 4820-00-287-3766 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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