PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257-3Impeller,pump,centrifugal

Roth Tank Co · NSN 4320-01-241-4419 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-241-4419 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-241-4419. Primary manufacturer part number: 257-3.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Overall Diameter: 5.250 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • 1 verified cross-reference
  • Primary manufacturer: Roth Tank Co
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 4320-01-241-4419, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Roth Tank Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4320-01-241-4419
Primary Part Number257-3
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRoth Tank Co
StatusACTIVE
Overall Diameter5.250 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5325-00-202-1604 INTERCHANGEABLE
Grommet,nonmetallic
5985-00-739-1212AD-03N INTERCHANGEABLE
Attenuator,fixed
Microlab/fxr Llc
7105-00-935-0430 INTERCHANGEABLE
Support,top,leg,right L
5975-01-069-21962573 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
1615-01-079-36662573 INTERCHANGEABLE
Plate,tail Rotor Su
Marvel Manufacturing Co Div the Marvel Manufacturing Company
5910-01-096-54792573 INTERCHANGEABLE
Capacitor
Crown Audio, Inc. Dba Crown International
5140-01-351-5113J2573 INTERCHANGEABLE
Holder,socket Wrench
The Stanley Works Dba Stanley Proto
6625-01-395-4995A3142414 INTERCHANGEABLE
Indicator,phase Sequence
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5935-01-575-18232573 INTERCHANGEABLE
Connector,plug,electrical
Hydraulics International, Inc. Dba Hydraulics International Inc
6105-01-589-9700 INTERCHANGEABLE
Cover,electric Motor
Cross-Reference Index
Part NumberManufacturer
257-3 Roth Tank Co (USA)
Related Parts
5325-00-202-1604INTERCHANGEABLE
GROMMET,NONMETALLIC
5985-00-739-1212INTERCHANGEABLE
ATTENUATOR,FIXED
AD-03N
7105-00-935-0430INTERCHANGEABLE
SUPPORT,TOP,LEG,RIGHT L
5975-01-069-2196INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2573
1615-01-079-3666INTERCHANGEABLE
PLATE,TAIL ROTOR SU
2573
5910-01-096-5479INTERCHANGEABLE
CAPACITOR
2573
5140-01-351-5113INTERCHANGEABLE
HOLDER,SOCKET WRENCH
J2573
6625-01-395-4995INTERCHANGEABLE
INDICATOR,PHASE SEQUENCE
A3142414
5935-01-575-1823INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2573
6105-01-589-9700INTERCHANGEABLE
COVER,ELECTRIC MOTOR
2590-01-608-6565INTERCHANGEABLE
RAIL ASSEMBLY,CURBS
2573

Frequently Asked Questions

What is NSN 4320-01-241-4419?

NSN 4320-01-241-4419 is a Impeller,pump,centrifugal, manufactured by Roth Tank Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-241-4419?

NSN 4320-01-241-4419 has 1 cross-referenced part number: 257-3 (Roth Tank Co).

What NSN replaces 4320-01-241-4419?

There are 11 known substitutes for 4320-01-241-4419: 5325-00-202-1604, 5985-00-739-1212, 7105-00-935-0430 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 257-3?

Key specifications for 257-3: Overall Diameter: 5.250 INCHES NOMINAL IN; Material: COPPER ALLOY; End Item Identification: ROTH PUMP 14SBH1261AB ON 400 FT WAGB C.G. VESSELS FT. 3 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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