PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28521Pump,centrifugal

Industrial Technologies and Services Llc · NSN 4320-01-336-1422 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-336-1422 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-336-1422. Primary manufacturer part number: 28521.
Features
  • Pump,centrifugal — FSC 4320
  • Discharge Connection Type: THREADED INTERNAL
  • Operating Speed at Rated Capacity: 3500.0 REVOLUTIONS PER MINUTE
  • Centrifugal Pump Impeller Quantity: 1
  • Drive Shaft Type: WOODRUFF KEYWAY
  • Drive Connection Type: CLOSE COUPLED
  • Intake Connection Quantity: 1
  • Discharge Connection Quantity: 1
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,centrifugal, cataloged under National Stock Number 4320-01-336-1422, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Industrial Technologies and Services Llc. Government technical data includes 9 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-336-1422
Primary Part Number28521
Item NamePump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerIndustrial Technologies and Services Llc
StatusACTIVE
Discharge Connection TypeTHREADED INTERNAL
Operating Speed at Rated Capacity3500.0 REVOLUTIONS PER MINUTE
Centrifugal Pump Impeller Quantity1
Drive Shaft TypeWOODRUFF KEYWAY
Drive Connection TypeCLOSE COUPLED
Intake Connection Quantity1
Discharge Connection Quantity1
Pumping Element Operating PositionHORIZONTAL
Intake Connection TypeTHREADED INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-056528521 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5360-00-242-0100285-21 INTERCHANGEABLE
Spring,helical,compression
Atb Laurence Scott Ltd
5905-00-482-7807 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5950-00-820-3872 INTERCHANGEABLE
Transformer,power
5355-00-889-3434 INTERCHANGEABLE
Knob
4320-01-067-276738233-091 14000 INTERCHANGEABLE
Housing,liquid Pump
The Gorman-Rupp Company Div Gorman-Rupp
4730-01-631-738128521 INTERCHANGEABLE
Coupling,pipe
United States Plastic Corp
Cross-Reference Index
Part NumberManufacturer
28521 PRIMARY Industrial Technologies and Services Llc (USA)
MP-110 Industrial Technologies and Services Llc (USA)
Related Parts
3110-00-100-0565INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
28521
5360-00-242-0100INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
285-21
5905-00-482-7807INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5950-00-820-3872INTERCHANGEABLE
TRANSFORMER,POWER
5355-00-889-3434INTERCHANGEABLE
KNOB
4320-01-067-2767INTERCHANGEABLE
HOUSING,LIQUID PUMP
38233-091 14000
4730-01-631-7381INTERCHANGEABLE
COUPLING,PIPE
28521

Frequently Asked Questions

What is NSN 4320-01-336-1422?

NSN 4320-01-336-1422 is a Pump,centrifugal, manufactured by Industrial Technologies and Services Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-336-1422?

NSN 4320-01-336-1422 has 2 cross-referenced part numbers: 28521 (Industrial Technologies and Services Llc), MP-110 (Industrial Technologies and Services Llc).

What NSN replaces 4320-01-336-1422?

There are 7 known substitutes for 4320-01-336-1422: 3110-00-100-0565, 5360-00-242-0100, 5905-00-482-7807 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28521?

Key specifications for 28521: Discharge Connection Type: THREADED INTERNAL; Operating Speed at Rated Capacity: 3500.0 REVOLUTIONS PER MINUTE; Centrifugal Pump Impeller Quantity: 1; Drive Shaft Type: WOODRUFF KEYWAY. 9 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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