PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3706-450Impeller,pump,centrifugal

Weil Pump Co Inc · NSN 4320-00-077-0763 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-077-0763 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-077-0763. Primary manufacturer part number: 3706-450.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Keyway Type: STRAIGHT
  • Blade Quantity: 5
  • Hub Length: 0.750 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN
  • Keyway Length: 1.500 INCHES NOMINAL IN
  • Design Type: SINGLE WIDTH
  • Material: COPPER ALLOY
  • Rotation Direction for Which Designed: CLOCKWISE
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 4320-00-077-0763, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Weil Pump Co Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-077-0763
Primary Part Number3706-450
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Keyway TypeSTRAIGHT
Blade Quantity5
Hub Length0.750 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN
Keyway Length1.500 INCHES NOMINAL IN
Design TypeSINGLE WIDTH
MaterialCOPPER ALLOY
Rotation Direction for Which DesignedCLOCKWISE
Hub Bore Diameter0.750 INCHES NOMINAL AND 0.750 INCHES NOMINAL IN
Keyway Quantity1
Hub LocationBACK SIDE AND FRONT SIDE
Hub Projection Length Beyond Wheel Side1.000 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN
Overall Diameter4.500 INCHES NOMINAL IN
Mounting MethodKEY
Hub Quantity2
Keyway Depth0.094 INCHES NOMINAL IN
Keyway Width0.188 INCHES NOMINAL IN
Blade TypeFORWARD CURVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2815-00-324-811014U1457PCADD5395 INTERCHANGEABLE
Lifter Assy Valve
Naval Ship Systems Command
6220-00-544-6501A-5395 INTERCHANGEABLE
Light,cockpit,aircraft
Grimes Aerospace Company
5999-00-622-5765A5395 INTERCHANGEABLE
Contact,electrical
Raytheon Company
4730-01-064-8409A5395 INTERCHANGEABLE
Plug,pipe
Oberdorfer Foundries Inc
4320-01-220-00435398 INTERCHANGEABLE
Deflector,dirt and Liquid
Weil Pump Co Inc
Cross-Reference Index
Part NumberManufacturer
A5395PC35 Weil Pump Co Inc (USA)
3706-450 PRIMARY Weil Pump Co Inc (USA)
A5395 Weil Pump Co Inc (USA)
Related Parts
2815-00-324-8110INTERCHANGEABLE
LIFTER ASSY VALVE
14U1457PCADD5395
6220-00-544-6501INTERCHANGEABLE
LIGHT,COCKPIT,AIRCRAFT
A-5395
5999-00-622-5765INTERCHANGEABLE
CONTACT,ELECTRICAL
A5395
4730-01-064-8409INTERCHANGEABLE
PLUG,PIPE
A5395
4320-01-220-0043INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
5398

Frequently Asked Questions

What is NSN 4320-00-077-0763?

NSN 4320-00-077-0763 is a Impeller,pump,centrifugal, manufactured by Weil Pump Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-077-0763?

NSN 4320-00-077-0763 has 3 cross-referenced part numbers: A5395PC35 (Weil Pump Co Inc), 3706-450 (Weil Pump Co Inc), A5395 (Weil Pump Co Inc).

What NSN replaces 4320-00-077-0763?

There are 5 known substitutes for 4320-00-077-0763: 2815-00-324-8110, 6220-00-544-6501, 5999-00-622-5765 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3706-450?

Key specifications for 3706-450: Keyway Type: STRAIGHT; Blade Quantity: 5; Hub Length: 0.750 INCHES NOMINAL AND 0.688 INCHES NOMINAL IN; Keyway Length: 1.500 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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