PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C73-01Valve,butterfly

New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc · NSN 4810-00-554-8127 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-554-8127 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-554-8127. Primary manufacturer part number: C73-01.
Features
  • Valve,butterfly — FSC 4810
  • Face to Face Distance: 2.735 INCHES IN
  • Nominal Thickness: 0.100 INCHES FIRST END IN
  • Material: STEEL BODY
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nominal Outside Diameter: 2.720 INCHES FIRST END IN
  • Style Designator: STRAIGHT THRU FLANGED ENDS
  • Media for Which Designed: AIR SINGLE RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,butterfly, cataloged under National Stock Number 4810-00-554-8127, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4810-00-554-8127
Primary Part NumberC73-01
Item NameValve,butterfly
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerNew Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc
StatusCANCELLED
Face to Face Distance2.735 INCHES IN
Nominal Thickness0.100 INCHES FIRST END IN
MaterialSTEEL BODY
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Outside Diameter2.720 INCHES FIRST END IN
Style DesignatorSTRAIGHT THRU FLANGED ENDS
Media for Which DesignedAIR SINGLE RESPONSE
Voltage in Volts and Current Type26.0 DC
Flange Face DesignPLAIN FIRST END
Flange ShapeROUND FIRST END
Maximum Operating Temp600.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeFLANGE FIRST END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5920-00-199-9497113-17 INTERCHANGEABLE
Fuse,cartridge
Data General Corporation
5920-00-199-9498 INTERCHANGEABLE
Fuse,cartridge
5920-00-878-5571313-500 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
5905-01-053-97621841096-7 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Honeywell Intl Inc Defense Avionics Systems
5920-01-416-5782313.500 INTERCHANGEABLE
Fuse,cartridge
Littelfuse, Inc.
Cross-Reference Index
Part NumberManufacturer
C73-01 New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc (USA)
15A2-2-43-3FIG5 Department of the Air Force (USA)
644611-3 Lockheed Martin Corp (USA)
313500 National Pipe Co (USA)
Related Parts
5920-00-199-9497INTERCHANGEABLE
FUSE,CARTRIDGE
113-17
5920-00-199-9498INTERCHANGEABLE
FUSE,CARTRIDGE
5920-00-878-5571INTERCHANGEABLE
FUSE,CARTRIDGE
313-500
5905-01-053-9762INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
1841096-7
5920-01-416-5782INTERCHANGEABLE
FUSE,CARTRIDGE
313.500

Frequently Asked Questions

What is NSN 4810-00-554-8127?

NSN 4810-00-554-8127 is a Valve,butterfly, manufactured by New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc, classified under FSC 4810 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4810-00-554-8127?

NSN 4810-00-554-8127 has 4 cross-referenced part numbers: C73-01 (New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc), 15A2-2-43-3FIG5 (Department of the Air Force), 644611-3 (Lockheed Martin Corp), 313500 (National Pipe Co).

What NSN replaces 4810-00-554-8127?

There are 5 known substitutes for 4810-00-554-8127: 5920-00-199-9497, 5920-00-199-9498, 5920-00-878-5571 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C73-01?

Key specifications for C73-01: Face to Face Distance: 2.735 INCHES IN; Nominal Thickness: 0.100 INCHES FIRST END IN; Material: STEEL BODY; Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4810-00-554-8127 still in active supply?

NSN 4810-00-554-8127 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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