PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

131.000.300SImpeller,pump,centrifugal

Wilo Usa Llc · NSN 4320-01-048-9578 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-048-9578 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-048-9578. Primary manufacturer part number: 131.000.300S.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Material: COPPER ALLOY
  • Design Type: SINGLE WIDTH
  • 9 verified cross-references
  • Primary manufacturer: Wilo Usa Llc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-048-9578, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Wilo Usa Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 2 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
NSN4320-01-048-9578
Primary Part Number131.000.300S
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWilo Usa Llc
StatusCANCELLED
MaterialCOPPER ALLOY
Design TypeSINGLE WIDTH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4320-01-048-6643110.000.284 INTERCHANGEABLE
Sleeve,shaft,pump
Wilo Usa Llc
4320-01-048-9781104.000.165 INTERCHANGEABLE
Deflector,dirt and Liquid
Wilo Usa Llc
4320-01-411-0718170001 INTERCHANGEABLE
Pump Unit,centrifugal
Wilo Usa Llc
Cross-Reference Index
Part NumberManufacturer
131.000.300S PRIMARY Wilo Usa Llc (USA)
131-000-423 Wilo Usa Llc (USA)
19-000-262PC15 Wilo Usa Llc (USA)
131-000-423-6.375IN Wilo Usa Llc (USA)
NH1B-69169-2B2 Square D Company Dba Schneider Electric (USA)
131-000-423 6.3 Wilo Usa Llc (USA)
19-000-262 Wilo Usa Llc (USA)
131-000-3005 Wilo Usa Llc (USA)
131.000.423 6.3 Wilo Usa Llc (USA)
Related Parts
4320-01-048-6643INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
110.000.284
4320-01-048-9781INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
104.000.165
4320-01-411-0718INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
170001

Frequently Asked Questions

What is NSN 4320-01-048-9578?

NSN 4320-01-048-9578 is a Impeller,pump,centrifugal, manufactured by Wilo Usa Llc, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-01-048-9578?

NSN 4320-01-048-9578 has 9 cross-referenced part numbers: 131.000.300S (Wilo Usa Llc), 131-000-423 (Wilo Usa Llc), 19-000-262PC15 (Wilo Usa Llc), 131-000-423-6.375IN (Wilo Usa Llc), NH1B-69169-2B2 (Square D Company Dba Schneider Electric) and 4 more.

What NSN replaces 4320-01-048-9578?

There are 3 known substitutes for 4320-01-048-9578: 4320-01-048-6643, 4320-01-048-9781, 4320-01-411-0718. Verify interchangeability with system specifications before substitution.

What are the specifications of 131.000.300S?

Key specifications for 131.000.300S: Material: COPPER ALLOY; Design Type: SINGLE WIDTH. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-01-048-9578 still in active supply?

NSN 4320-01-048-9578 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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