PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9504Impeller,pump,centrifugal

C-B Tool Co · NSN 4320-01-329-7320 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-329-7320 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-329-7320. Primary manufacturer part number: 9504.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Blade Type: STRAIGHT
  • Keyway Depth: 0.0795 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Hub Bore Diameter: 0.7505 INCHES NOMINAL IN
  • Mounting Method: KEY
  • Hub Quantity: 1
  • Hub Location: CENTRALLY
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 4320-01-329-7320, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is C-B Tool Co. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-329-7320
Primary Part Number9504
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerC-B Tool Co
StatusACTIVE
Blade TypeSTRAIGHT
Keyway Depth0.0795 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Hub Bore Diameter0.7505 INCHES NOMINAL IN
Mounting MethodKEY
Hub Quantity1
Hub LocationCENTRALLY
Design TypeSINGLE WIDTH
Keyway Length0.875 INCHES NOMINAL IN
Hub Projection Length Beyond Wheel Side0.219 INCHES NOMINAL IN
Keyway Quantity1
Keyway Width0.157 INCHES NOMINAL IN
Overall Diameter5.813 INCHES NOMINAL IN
Hub Length0.875 INCHES NOMINAL IN
Keyway TypeSTRAIGHT
Blade Quantity4
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3110-00-100-2365204N INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5310-00-167-0731 INTERCHANGEABLE
Washer,concave
5360-00-291-5438MC1346S22-0-9ERPC24 INTERCHANGEABLE
Spring,helical,compression
Maritime Administration
3110-00-516-55262BIC02 INTERCHANGEABLE
Bearing,ball,annular
Anti-Friction Bearing Mfg Assn Inc the
5970-00-535-26819504 INTERCHANGEABLE
Insulator,standoff
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
2910-00-580-637107-1610 INTERCHANGEABLE
Filter Element,fluid
Bacharach, Inc.
6220-00-756-5764MODEL AG INTERCHANGEABLE
Spotlight
Unity Manufacturing Co
5950-01-176-50819100-3561 INTERCHANGEABLE
Coil,radio Frequency
Keysight Technologies Inc
6145-01-363-3365 INTERCHANGEABLE
Cable,special Purpose,electrical
6130-01-367-51259504 INTERCHANGEABLE
Power Supply
Hose-Mccann Telephone Co, Inc
Cross-Reference Index
Part NumberManufacturer
9504 C-B Tool Co (USA)
Related Parts
3110-00-100-2365INTERCHANGEABLE
BEARING,BALL,ANNULAR
204N
5310-00-167-0731INTERCHANGEABLE
WASHER,CONCAVE
5360-00-291-5438INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
MC1346S22-0-9ERPC24
3110-00-516-5526INTERCHANGEABLE
BEARING,BALL,ANNULAR
2BIC02
5970-00-535-2681INTERCHANGEABLE
INSULATOR,STANDOFF
9504
2910-00-580-6371INTERCHANGEABLE
FILTER ELEMENT,FLUID
07-1610
6220-00-756-5764INTERCHANGEABLE
SPOTLIGHT
MODEL AG
5950-01-176-5081INTERCHANGEABLE
COIL,RADIO FREQUENCY
9100-3561
6145-01-363-3365INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
6130-01-367-5125INTERCHANGEABLE
POWER SUPPLY
9504
5365-01-391-8824INTERCHANGEABLE
SPACER,SLEEVE

Frequently Asked Questions

What is NSN 4320-01-329-7320?

NSN 4320-01-329-7320 is a Impeller,pump,centrifugal, manufactured by C-B Tool Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-329-7320?

NSN 4320-01-329-7320 has 1 cross-referenced part number: 9504 (C-B Tool Co).

What NSN replaces 4320-01-329-7320?

There are 11 known substitutes for 4320-01-329-7320: 3110-00-100-2365, 5310-00-167-0731, 5360-00-291-5438 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9504?

Key specifications for 9504: Overall Width: 1.531 INCHES NOMINAL IN; Blade Type: STRAIGHT; Keyway Depth: 0.0795 INCHES NOMINAL IN; Material: COPPER ALLOY. 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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