PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4344Sleeve,shaft,pump

Weil Pump Co Inc · NSN 4320-00-019-0700 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-019-0700 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-019-0700. Primary manufacturer part number: 4344.
Features
  • Sleeve,shaft,pump — FSC 4320
  • Body Outside Diameter: 2.5000 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Surface Groove Location and Quantity: 1 INTERNAL
  • Body Inside Diameter: 2.0000 INCHES NOMINAL IN
  • Lubricant Accommodation Style: GROOVED CIRCULAR
  • Material: STEEL CORROSION RESISTING OVERALL
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Sleeve,shaft,pump, cataloged under National Stock Number 4320-00-019-0700, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4320-00-019-0700
Primary Part Number4344
Item NameSleeve,shaft,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil Pump Co Inc
StatusACTIVE
Body Outside Diameter2.5000 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Surface Groove Location and Quantity1 INTERNAL
Body Inside Diameter2.0000 INCHES NOMINAL IN
Lubricant Accommodation StyleGROOVED CIRCULAR
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-142-1665 INTERCHANGEABLE
Trap,steam
5305-00-390-06504344 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
5910-00-648-721222G24 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Aimtron Systems, Llc
5905-00-814-75464617 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Electro Scientific Industries Inc
5310-01-288-1254 INTERCHANGEABLE
Nut,concave,square
4210-01-438-589743-44 INTERCHANGEABLE
Reel Assembly,hose
Hannay Reels Inc
Cross-Reference Index
Part NumberManufacturer
A1783PC.46A Weil Pump Co Inc (USA)
4344 PRIMARY Weil Pump Co Inc (USA)
Related Parts
4730-00-142-1665INTERCHANGEABLE
TRAP,STEAM
5305-00-390-0650INTERCHANGEABLE
SCREW,SHOULDER
4344
5910-00-648-7212INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
22G24
5905-00-814-7546INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4617
5310-01-288-1254INTERCHANGEABLE
NUT,CONCAVE,SQUARE
4210-01-438-5897INTERCHANGEABLE
REEL ASSEMBLY,HOSE
43-44

Frequently Asked Questions

What is NSN 4320-00-019-0700?

NSN 4320-00-019-0700 is a Sleeve,shaft,pump, manufactured by Weil Pump Co Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-019-0700?

NSN 4320-00-019-0700 has 2 cross-referenced part numbers: A1783PC.46A (Weil Pump Co Inc), 4344 (Weil Pump Co Inc).

What NSN replaces 4320-00-019-0700?

There are 6 known substitutes for 4320-00-019-0700: 4730-00-142-1665, 5305-00-390-0650, 5910-00-648-7212 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4344?

Key specifications for 4344: Special Features: ONE KEYWAY 0.188 IN. W BY 0.094 IN. DEEP,1.250IN. LG IN; Body Outside Diameter: 2.5000 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 9 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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