PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22121Impeller,pump,centrifugal

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-088-4552 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-088-4552 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-088-4552. Primary manufacturer part number: 22121.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Overall Diameter: 6.750 INCHES NOMINAL IN
  • 8 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-088-4552, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-088-4552
Primary Part Number22121
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusCANCELLED
Overall Diameter6.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
4730-00-011-8539118539 INTERCHANGEABLE
Nut,tube Coupling
Rolls-Royce Solutions America Inc
3110-00-109-1155 INTERCHANGEABLE
Bearing,ball,annular
5120-00-133-0029 INTERCHANGEABLE
Contact Positioner,terminal Crim
5930-00-935-95842212-1 INTERCHANGEABLE
Switch,pressure
Spectrum Associates, Inc.
5985-00-978-77552469524 INTERCHANGEABLE
Attenuator,variable
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-184-21702212-1T INTERCHANGEABLE
Guide,float,valve
Tate Andale, Llc
4730-01-190-253422121 INTERCHANGEABLE
Elbow,flange to Hose
Industrial Technologies and Services Llc
6545-01-381-5035UA1335 INTERCHANGEABLE
Stand Alone Medical Materiel
Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
Cross-Reference Index
Part NumberManufacturer
22121PA6 3-4IN Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
22121PA6 3-4IN Dresser Industries Inc (USA)
22121PA6 3-4IN Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
22121PA Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
22121 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
RY78954 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
22121 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
22122PA6 3-4IN Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Related Parts
4730-00-011-8539INTERCHANGEABLE
NUT,TUBE COUPLING
118539
3110-00-109-1155INTERCHANGEABLE
BEARING,BALL,ANNULAR
5120-00-133-0029INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
5930-00-935-9584INTERCHANGEABLE
SWITCH,PRESSURE
2212-1
5985-00-978-7755INTERCHANGEABLE
ATTENUATOR,VARIABLE
2469524
4820-01-184-2170INTERCHANGEABLE
GUIDE,FLOAT,VALVE
2212-1T
4730-01-190-2534INTERCHANGEABLE
ELBOW,FLANGE TO HOSE
22121
6545-01-381-5035INTERCHANGEABLE
STAND ALONE MEDICAL MATERIEL
UA1335

Frequently Asked Questions

What is NSN 4320-00-088-4552?

NSN 4320-00-088-4552 is a Impeller,pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-088-4552?

NSN 4320-00-088-4552 has 8 cross-referenced part numbers: 22121PA6 3-4IN (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 22121PA6 3-4IN (Dresser Industries Inc), 22121PA6 3-4IN (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 22121PA (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 22121 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging) and 3 more.

What NSN replaces 4320-00-088-4552?

There are 8 known substitutes for 4320-00-088-4552: 4730-00-011-8539, 3110-00-109-1155, 5120-00-133-0029 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22121?

Key specifications for 22121: End Item Identification: PUMP CENTRIFUGAL,DRESSER PUMP DIVISION,MODEL 2CN62; Overall Diameter: 6.750 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-088-4552 still in active supply?

NSN 4320-00-088-4552 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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