PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

873963CImpeller,pump,centrifugal

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 4320-00-398-7917 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-7917 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-7917. Primary manufacturer part number: 873963C.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Design Type: SINGLE WIDTH
  • Blade Type: BACKWARD CURVE
  • Rotation Direction for Which Designed: COUNTERCLOCKWISE
  • Overall Diameter: 4.365 INCHES NOMINAL IN
  • Keyway Depth: 0.125 INCHES NOMINAL IN
  • Keyway Type: RECTANGULAR
  • Keyway Width: 0.190 INCHES NOMINAL IN
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 4320-00-398-7917, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-398-7917
Primary Part Number873963C
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Design TypeSINGLE WIDTH
Blade TypeBACKWARD CURVE
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Overall Diameter4.365 INCHES NOMINAL IN
Keyway Depth0.125 INCHES NOMINAL IN
Keyway TypeRECTANGULAR
Keyway Width0.190 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Mounting MethodKEY
Hub Bore Diameter0.748 INCHES NOMINAL AND 2.710 INCHES NOMINAL IN
Hub Projection Length Beyond Wheel Side2.715 INCHES NOMINAL AND 0.863 INCHES NOMINAL IN
Hub Length2.715 INCHES NOMINAL AND 0.863 INCHES NOMINAL IN
Hub Quantity2
Hub LocationBACK SIDE AND FRONT SIDE
Blade Quantity6
Keyway Length2.754 INCHES NOMINAL IN
Keyway Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-211-3995 INTERCHANGEABLE
Coil,radio Frequency
5945-00-217-094910-680 INTERCHANGEABLE
Relay Subassembly
Eaton Corp Opns & Technical Center
5977-00-265-290010680 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
6680-00-765-6463 INTERCHANGEABLE
Switch,liquid Level
5995-00-961-8516 INTERCHANGEABLE
Cable Assembly,special Purpose,e
5961-01-223-0363 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
873963C PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL5891PC3 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
10680 PRIMARY Rps-Fl, Inc. Dba Rps Inc (USA)
SL5891PC3 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5665PC3 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL6063PC3 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL5665PC3 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6053PC3 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
873963C Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6063PC3 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
95P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6053PC3 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
1184P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
1184P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
95P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
5950-00-211-3995INTERCHANGEABLE
COIL,RADIO FREQUENCY
5945-00-217-0949INTERCHANGEABLE
RELAY SUBASSEMBLY
10-680
5977-00-265-2900INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10680
6680-00-765-6463INTERCHANGEABLE
SWITCH,LIQUID LEVEL
5995-00-961-8516INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5961-01-223-0363INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 4320-00-398-7917?

NSN 4320-00-398-7917 is a Impeller,pump,centrifugal, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-398-7917?

NSN 4320-00-398-7917 has 15 cross-referenced part numbers: 873963C (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL5891PC3 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 10680 (Rps-Fl, Inc. Dba Rps Inc), SL5891PC3 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL5665PC3 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 10 more.

What NSN replaces 4320-00-398-7917?

There are 6 known substitutes for 4320-00-398-7917: 5950-00-211-3995, 5945-00-217-0949, 5977-00-265-2900 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 873963C?

Key specifications for 873963C: Design Type: SINGLE WIDTH; Blade Type: BACKWARD CURVE; Rotation Direction for Which Designed: COUNTERCLOCKWISE; Overall Diameter: 4.365 INCHES NOMINAL IN. 18 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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