PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

755-5-3Disk,valve

Flowserve Corporation Div Flowserve Us Inc · NSN 4820-01-233-8120 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-233-8120 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-233-8120. Primary manufacturer part number: 755-5-3.
Features
  • Disk,valve — FSC 4820
  • Material: STEEL
  • Taper Length: 6.438 INCHES NOMINAL IN
  • Taper Minor Diameter: 3.250 INCHES NOMINAL IN
  • Taper Major Diameter: 4.370 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Flowserve Corporation Div Flowserve Us Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-233-8120, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-233-8120
Primary Part Number755-5-3
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFlowserve Corporation Div Flowserve Us Inc
StatusACTIVE
MaterialSTEEL
Taper Length6.438 INCHES NOMINAL IN
Taper Minor Diameter3.250 INCHES NOMINAL IN
Taper Major Diameter4.370 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2915-00-452-8334 INTERCHANGEABLE
Seat Spring
6625-00-578-6739 INTERCHANGEABLE
Potentiometer,test
5935-00-854-7009189302 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Rms - Mitchel Field
3030-01-037-493415555 INTERCHANGEABLE
Belts,v,matched Set
Muviq Usa, Llc
5975-01-124-03527302RAC INTERCHANGEABLE
Junction Box
Raco, a Division of Hubbell Incorporated(delaware)
4130-01-146-2849 INTERCHANGEABLE
Compressor Unit,refrigeration
4130-01-194-6462 INTERCHANGEABLE
Compressor Unit,refrigeration
3750-01-211-5310 INTERCHANGEABLE
Blade,mower
2540-01-263-3214 INTERCHANGEABLE
Handle,door,vehicular
6515-01-366-50247555 INTERCHANGEABLE
Electrode,electrocardiograph
Graphic Controls Corp Medical Products Div
Cross-Reference Index
Part NumberManufacturer
755-5E PIECE 3 Flowserve Corporation Div Flowserve Us Inc (USA)
755-5-3 PRIMARY Flowserve Corporation Div Flowserve Us Inc (USA)
755-5 Flowserve Corporation Div Flowserve Us Inc (USA)
Related Parts
2915-00-452-8334INTERCHANGEABLE
SEAT SPRING
6625-00-578-6739INTERCHANGEABLE
POTENTIOMETER,TEST
5935-00-854-7009INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
189302
3030-01-037-4934INTERCHANGEABLE
BELTS,V,MATCHED SET
15555
5975-01-124-0352INTERCHANGEABLE
JUNCTION BOX
7302RAC
4130-01-146-2849INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
4130-01-194-6462INTERCHANGEABLE
COMPRESSOR UNIT,REFRIGERATION
3750-01-211-5310INTERCHANGEABLE
BLADE,MOWER
2540-01-263-3214INTERCHANGEABLE
HANDLE,DOOR,VEHICULAR
6515-01-366-5024INTERCHANGEABLE
ELECTRODE,ELECTROCARDIOGRAPH
7555
4720-01-598-2944INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
75553

Frequently Asked Questions

What is NSN 4820-01-233-8120?

NSN 4820-01-233-8120 is a Disk,valve, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-233-8120?

NSN 4820-01-233-8120 has 3 cross-referenced part numbers: 755-5E PIECE 3 (Flowserve Corporation Div Flowserve Us Inc), 755-5-3 (Flowserve Corporation Div Flowserve Us Inc), 755-5 (Flowserve Corporation Div Flowserve Us Inc).

What NSN replaces 4820-01-233-8120?

There are 11 known substitutes for 4820-01-233-8120: 2915-00-452-8334, 6625-00-578-6739, 5935-00-854-7009 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 755-5-3?

Key specifications for 755-5-3: Material: STEEL; Taper Length: 6.438 INCHES NOMINAL IN; Taper Minor Diameter: 3.250 INCHES NOMINAL IN; Taper Major Diameter: 4.370 INCHES NOMINAL IN. 4 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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