PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

941-703-020-139-050Valve,butterfly

Emerson Automation Solutions Final Control Us Lp · NSN 4820-01-085-2633 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-085-2633 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-085-2633. Primary manufacturer part number: 941-703-020-139-050.
Features
  • Valve,butterfly — FSC 4820
  • Material Document and Classification: ASTM B164-61,CLASS A ASSN STD 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE OR QQ-C-390,ALLOY D4 FED SPEC 3RD MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 4TH MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Material Document and Classification: QQ-C-390,ALLOY D4 FED SPEC 1ST MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 3RD MATERIAL RESPONSE BODY
  • Media for Which Designed: WATER, SALT SECOND RESPONSE
  • Valve Operation Method: MANUAL
  • Renewable Seat Ring Type: PRESSED-IN
  • Material: STEEL COMP 202 OR COPPER ALLOY 905 OR COPPER ALLOY BODY
  • Media for Which Designed: WATER, FRESH FIRST RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 202 or Copper Alloy 905 or Copper Alloy Body construction
General Description

The Valve,butterfly, cataloged under National Stock Number 4820-01-085-2633, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp. Government technical data includes 21 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-085-2633
Primary Part Number941-703-020-139-050
Item NameValve,butterfly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp
StatusCANCELLED
Material Document and ClassificationASTM B164-61,CLASS A ASSN STD 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE OR QQ-C-390,ALLOY D4 FED SPEC 3RD MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 4TH MATERIAL RESPONSE FLOW CONTROL DEVICE
Material Document and ClassificationQQ-C-390,ALLOY D4 FED SPEC 1ST MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 3RD MATERIAL RESPONSE BODY
Media for Which DesignedWATER, SALT SECOND RESPONSE
Valve Operation MethodMANUAL
Renewable Seat Ring TypePRESSED-IN
MaterialSTEEL COMP 202 OR COPPER ALLOY 905 OR COPPER ALLOY BODY
Media for Which DesignedWATER, FRESH FIRST RESPONSE
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY OR COPPER ALLOY 922 OR COPPER ALLOY FLOW CONTROL DEVICE
Bonnet TypePACKING RETAINING
Media for Which DesignedFUEL/OIL, HYDROCARBON THIRD RESPONSE
Style DesignatorSTRAIGHT THRU
Material Document and ClassificationASTM B164-61,CLASS ASJBCQQ-N0286 ASSN STD 1ST MATERIAL RESPONSE STEM
Maximum Operating Temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
MaterialRUBBER SYNTHETIC SEAT
Connection StylePLAIN (PIPE) ALL ENDS
Nondefinitive Spec/std Data1 TYPE AND A CLASS AND 200 SERIES AND A CONSTRUCTION AND 2IN. SIZE IN
Nominal Pipe Size Accommodated2.000 INCHES ALL ENDS IN
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY K-500 OR NICKEL ALLOY 502 OR STEEL CORROSION RESISTING STEM
Specification/standard Data81349-MIL-V-22133 GOVERNMENT SPECIFICATION
Operating Pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeUNTHREADED EXTERNAL PIPE ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4810-00-419-6032941-703-060-139-050M032 INTERCHANGEABLE
Valve,butterfly
Emerson Automation Solutions Final Control Us Lp
4810-00-419-6033 INTERCHANGEABLE
Valve,butterfly
4810-00-419-6034 INTERCHANGEABLE
Valve,butterfly
4810-00-419-6035 INTERCHANGEABLE
Valve,butterfly
4810-00-419-6036 INTERCHANGEABLE
Valve,butterfly
4810-00-419-9869941-703-100-139-051M032 INTERCHANGEABLE
Valve,butterfly
Emerson Automation Solutions Final Control Us Lp
4810-00-445-4783941-703-080-139-050M032 INTERCHANGEABLE
Valve,butterfly
Emerson Automation Solutions Final Control Us Lp
4820-01-078-45342R2030-64AA-1FM INTERCHANGEABLE
Valve,butterfly
Norriseal Norris Values Div Dba Dover Co
4820-01-088-0814R2030-64AA-2KM INTERCHANGEABLE
Valve,butterfly
Dover Resources, Inc. Div Norriseal
4820-01-088-5386 INTERCHANGEABLE
Valve,butterfly
Cross-Reference Index
Part NumberManufacturer
703-020-139-050 Emerson Automation Solutions Final Control Us Lp (USA)
3854 2IN 200PSI 3854-133331 Cooper Cameron Corp Cooper Cameron Valves Div (USA)
3854-1334311 Cooper Cameron Corp Cooper Cameron Valves Div (USA)
MIL-V-22133 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3854-1333311 Cooper Cameron Corp Cooper Cameron Valves Div (USA)
3255613-1 Naval Sea Systems Command (USA)
941-703-020-139-050 PRIMARY Emerson Automation Solutions Final Control Us Lp (USA)
Related Parts
4810-00-419-6032INTERCHANGEABLE
VALVE,BUTTERFLY
941-703-060-139-050M032
4810-00-419-6033INTERCHANGEABLE
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4810-00-419-6034INTERCHANGEABLE
VALVE,BUTTERFLY
4810-00-419-6035INTERCHANGEABLE
VALVE,BUTTERFLY
4810-00-419-6036INTERCHANGEABLE
VALVE,BUTTERFLY
4810-00-419-9869INTERCHANGEABLE
VALVE,BUTTERFLY
941-703-100-139-051M032
4810-00-445-4783INTERCHANGEABLE
VALVE,BUTTERFLY
941-703-080-139-050M032
4820-01-078-4534INTERCHANGEABLE
VALVE,BUTTERFLY
2R2030-64AA-1FM
4820-01-088-0814INTERCHANGEABLE
VALVE,BUTTERFLY
R2030-64AA-2KM
4820-01-088-5386INTERCHANGEABLE
VALVE,BUTTERFLY
4820-01-088-7461INTERCHANGEABLE
VALVE,BUTTERFLY
4820-01-144-2315INTERCHANGEABLE
VALVE,BUTTERFLY

Frequently Asked Questions

What is NSN 4820-01-085-2633?

NSN 4820-01-085-2633 is a Valve,butterfly, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-085-2633?

NSN 4820-01-085-2633 has 7 cross-referenced part numbers: 703-020-139-050 (Emerson Automation Solutions Final Control Us Lp), 3854 2IN 200PSI 3854-133331 (Cooper Cameron Corp Cooper Cameron Valves Div), 3854-1334311 (Cooper Cameron Corp Cooper Cameron Valves Div), MIL-V-22133 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3854-1333311 (Cooper Cameron Corp Cooper Cameron Valves Div) and 2 more.

What NSN replaces 4820-01-085-2633?

There are 12 known substitutes for 4820-01-085-2633: 4810-00-419-6032, 4810-00-419-6033, 4810-00-419-6034 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 941-703-020-139-050?

Key specifications for 941-703-020-139-050: Material Document and Classification: ASTM B164-61,CLASS A ASSN STD 1ST MATERIAL RESPONSE OR QQ-N-288 FED SPEC 2ND MATERIAL RESPONSE OR QQ-C-390,ALLOY D4 FED SPEC 3RD MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 4TH MATERIAL RESPONSE FLOW CONTROL DEVICE; Material Document and Classification: QQ-C-390,ALLOY D4 FED SPEC 1ST MATERIAL RESPONSE OR MIL-B-23921 MIL SPEC 3RD MATERIAL RESPONSE BODY; Media for Which Designed: WATER, SALT SECOND RESPONSE; Valve Operation Method: MANUAL. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-085-2633 still in active supply?

NSN 4820-01-085-2633 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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