PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2177802Diffuser,pump,centrifugal

Itt Marlow a Unit of Itt Pumps and Compressors Div · NSN 4320-00-920-7136 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-920-7136 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-920-7136. Primary manufacturer part number: 2177802.
Features
  • Diffuser,pump,centrifugal — FSC 4320
  • General Characteristics Item Description: CAST IRON
  • 2 verified cross-references
  • Primary manufacturer: Itt Marlow a Unit of Itt Pumps and Compressors Div
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Diffuser,pump,centrifugal, cataloged under National Stock Number 4320-00-920-7136, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Itt Marlow a Unit of Itt Pumps and Compressors Div. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-920-7136
Primary Part Number2177802
Item NameDiffuser,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerItt Marlow a Unit of Itt Pumps and Compressors Div
StatusACTIVE
General Characteristics Item DescriptionCAST IRON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-226-841821778 INTERCHANGEABLE
Strainer Element,sediment
Leslie Controls, Inc. Dba Leslie Controls Inc
3455-00-232-410119955 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
2920-00-516-703821778 INTERCHANGEABLE
Rotor,ignition Distributor
Mitsubishi Caterpillar Forklift America, Inc
3040-01-406-200021778 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
Coffin Turbo Pump Inc
6240-01-475-8191 INTERCHANGEABLE
Lamp,fluorescent
Cross-Reference Index
Part NumberManufacturer
2177802 PRIMARY Itt Marlow a Unit of Itt Pumps and Compressors Div (USA)
21778 Itt Marlow a Unit of Itt Pumps and Compressors Div (USA)
Related Parts
4730-00-226-8418INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
21778
3455-00-232-4101INTERCHANGEABLE
REAMER,MACHINE
19955
2920-00-516-7038INTERCHANGEABLE
ROTOR,IGNITION DISTRIBUTOR
21778
3040-01-406-2000INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
21778
6240-01-475-8191INTERCHANGEABLE
LAMP,FLUORESCENT

Frequently Asked Questions

What is NSN 4320-00-920-7136?

NSN 4320-00-920-7136 is a Diffuser,pump,centrifugal, manufactured by Itt Marlow a Unit of Itt Pumps and Compressors Div, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-920-7136?

NSN 4320-00-920-7136 has 2 cross-referenced part numbers: 2177802 (Itt Marlow a Unit of Itt Pumps and Compressors Div), 21778 (Itt Marlow a Unit of Itt Pumps and Compressors Div).

What NSN replaces 4320-00-920-7136?

There are 5 known substitutes for 4320-00-920-7136: 4730-00-226-8418, 3455-00-232-4101, 2920-00-516-7038 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2177802?

Key specifications for 2177802: End Item Identification: ITT MARLOW MODEL 4D2; General Characteristics Item Description: CAST IRON. 2 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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