PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1671M1125Impeller,pump,centrifugal

Weil Pump Co Inc · NSN 4320-01-210-2818 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-210-2818 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-210-2818. Primary manufacturer part number: A1671M1125.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Setscrew Quantity: 6
  • Material: NICKEL ALLOY
  • Overall Diameter: 11.250 INCHES NOMINAL IN
  • Blade Type: BACKWARD CURVE
  • Blade Quantity: 6
  • Mounting Method: SETSCREW
  • Rotation Direction for Which Designed: CLOCKWISE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Nickel Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-210-2818, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 7 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-210-2818
Primary Part NumberA1671M1125
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Setscrew Quantity6
MaterialNICKEL ALLOY
Overall Diameter11.250 INCHES NOMINAL IN
Blade TypeBACKWARD CURVE
Blade Quantity6
Mounting MethodSETSCREW
Rotation Direction for Which DesignedCLOCKWISE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-03481620 INTERCHANGEABLE
Cup,tapered Roller Bearing
Mitsubishi Caterpillar Forklift America, Inc
3455-00-231-352453-10006 INTERCHANGEABLE
Cutter,milling,shell End
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5945-00-369-042940-295-9 INTERCHANGEABLE
Finger,contact
Eaton Corp Opns & Technical Center
6610-00-620-3802 INTERCHANGEABLE
Indicator,turn and Slip
4730-00-737-5817A1620 INTERCHANGEABLE
Packing Nut
Dcm Manufacturing, Inc.
4730-01-013-6131A1620 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Mueller Brass Co.
5315-01-218-7221 INTERCHANGEABLE
Pin,straight,headless
7310-01-320-3873A1620 INTERCHANGEABLE
Circulator,dispenser
Jal Enterprises, Inc. Dba Jal Enterprises T
Cross-Reference Index
Part NumberManufacturer
A1620 Weil Pump Co Inc (USA)
A1671M1125 PRIMARY Weil Pump Co Inc (USA)
A1620 PIECE 14,17 Weil Pump Co Inc (USA)
Related Parts
3110-00-100-0348INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
1620
3455-00-231-3524INTERCHANGEABLE
CUTTER,MILLING,SHELL END
53-10006
5945-00-369-0429INTERCHANGEABLE
FINGER,CONTACT
40-295-9
6610-00-620-3802INTERCHANGEABLE
INDICATOR,TURN AND SLIP
4730-00-737-5817INTERCHANGEABLE
PACKING NUT
A1620
4730-01-013-6131INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
A1620
5315-01-218-7221INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
7310-01-320-3873INTERCHANGEABLE
CIRCULATOR,DISPENSER
A1620

Frequently Asked Questions

What is NSN 4320-01-210-2818?

NSN 4320-01-210-2818 is a Impeller,pump,centrifugal, manufactured by Weil Pump Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-210-2818?

NSN 4320-01-210-2818 has 3 cross-referenced part numbers: A1620 (Weil Pump Co Inc), A1671M1125 (Weil Pump Co Inc), A1620 PIECE 14,17 (Weil Pump Co Inc).

What NSN replaces 4320-01-210-2818?

There are 8 known substitutes for 4320-01-210-2818: 3110-00-100-0348, 3455-00-231-3524, 5945-00-369-0429 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1671M1125?

Key specifications for A1671M1125: Setscrew Quantity: 6; Material: NICKEL ALLOY; Overall Diameter: 11.250 INCHES NOMINAL IN; Blade Type: BACKWARD CURVE. 8 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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