PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10523Impeller,pump,centrifugal

Rps-Fl, Inc. Dba Rps Inc · NSN 4320-00-770-0021 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-770-0021 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-770-0021. Primary manufacturer part number: 10523.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Keyway Quantity: 1
  • Keyway Depth: 0.094 INCHES NOMINAL IN
  • Blade Type: BACKWARD CURVE
  • Hub Location: BACK SIDE AND FRONT SIDE
  • Keyway Length: 2.750 INCHES NOMINAL IN
  • Hub Length: 0.688 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN
  • Keyway Type: RECTANGULAR
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 4320-00-770-0021, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Rps-Fl, Inc. Dba Rps Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-770-0021
Primary Part Number10523
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRps-Fl, Inc. Dba Rps Inc
StatusCANCELLED
Keyway Quantity1
Keyway Depth0.094 INCHES NOMINAL IN
Blade TypeBACKWARD CURVE
Hub LocationBACK SIDE AND FRONT SIDE
Keyway Length2.750 INCHES NOMINAL IN
Hub Length0.688 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN
Keyway TypeRECTANGULAR
Overall Diameter7.750 INCHES NOMINAL IN
Keyway Width0.188 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Hub Bore Diameter2.125 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN
Hub Quantity2
Mounting MethodKEY
Blade Quantity6
Rotation Direction for Which DesignedCLOCKWISE
Hub Projection Length Beyond Wheel Side0.875 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN
Design TypeSINGLE WIDTH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-142-4285 INTERCHANGEABLE
Bearing,ball,airframe
5310-00-584-7961 INTERCHANGEABLE
Nut,self-Locking,hexagon
5945-00-773-3392BA-104H INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5307-01-011-1410105-23 INTERCHANGEABLE
Stud,plain
Napco International Llc Dba Napco International Inc
2590-01-094-900810523 INTERCHANGEABLE
Parts Kit,winch
Am General Llc
2540-01-099-37463T2083 INTERCHANGEABLE
Core,heater
Caterpillar Inc Div Caterpillar Defense
4210-01-153-27506676-04997 INTERCHANGEABLE
Carriage,fire Extinguisher
Wheeler Fleet Solutions, Co.
5305-01-159-006510501759 INTERCHANGEABLE
Screw,cap,hexagon Head
General Dynamics Land Systems Canadacorp
5998-01-239-2298 INTERCHANGEABLE
Circuit Card Assembly
6515-01-308-6378105.23 INTERCHANGEABLE
Plate Set,bone,compression
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
10523 Rps-Fl, Inc. Dba Rps Inc (USA)
14800P2DE7 Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
14800P2DE7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
G19633E Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
SL6070PCC Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
5279P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL6070PCC Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
G19633E Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
5279P Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
3110-00-142-4285INTERCHANGEABLE
BEARING,BALL,AIRFRAME
5310-00-584-7961INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5945-00-773-3392INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
BA-104H
5307-01-011-1410INTERCHANGEABLE
STUD,PLAIN
105-23
2590-01-094-9008INTERCHANGEABLE
PARTS KIT,WINCH
10523
2540-01-099-3746INTERCHANGEABLE
CORE,HEATER
3T2083
4210-01-153-2750INTERCHANGEABLE
CARRIAGE,FIRE EXTINGUISHER
6676-04997
5305-01-159-0065INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
10501759
5998-01-239-2298INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6515-01-308-6378INTERCHANGEABLE
PLATE SET,BONE,COMPRESSION
105.23
5310-01-345-0080INTERCHANGEABLE
WASHER,FLAT
10523
5340-01-362-6883INTERCHANGEABLE
HARDWARE KIT,ELECTRONIC EQUIPMEN
10523

Frequently Asked Questions

What is NSN 4320-00-770-0021?

NSN 4320-00-770-0021 is a Impeller,pump,centrifugal, manufactured by Rps-Fl, Inc. Dba Rps Inc, classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-770-0021?

NSN 4320-00-770-0021 has 9 cross-referenced part numbers: 10523 (Rps-Fl, Inc. Dba Rps Inc), 14800P2DE7 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 14800P2DE7 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), G19633E (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL6070PCC (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 4 more.

What NSN replaces 4320-00-770-0021?

There are 12 known substitutes for 4320-00-770-0021: 3110-00-142-4285, 5310-00-584-7961, 5945-00-773-3392 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10523?

Key specifications for 10523: Keyway Quantity: 1; Keyway Depth: 0.094 INCHES NOMINAL IN; Blade Type: BACKWARD CURVE; Hub Location: BACK SIDE AND FRONT SIDE. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-770-0021 still in active supply?

NSN 4320-00-770-0021 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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