PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6823-42Deflector,dirt and Liquid

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-01-423-4425 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-423-4425 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-423-4425. Primary manufacturer part number: 6823-42.
Features
  • Deflector,dirt and Liquid — FSC 4320
  • Material Thickness: 0.250 INCHES NOMINAL IN
  • Outside Diameter: 6.000 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Mounting Hole Quantity: 1
  • Inside Diameter: 3.875 INCHES NOMINAL IN
  • Mounting Hole Diameter: 3.875 INCHES NOMINAL IN
  • Style Designator: ROUND
Applications
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Deflector,dirt and Liquid, cataloged under National Stock Number 4320-01-423-4425, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4320-01-423-4425
Primary Part Number6823-42
Item NameDeflector,dirt and Liquid
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Material Thickness0.250 INCHES NOMINAL IN
Outside Diameter6.000 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR
Mounting Hole Quantity1
Inside Diameter3.875 INCHES NOMINAL IN
Mounting Hole Diameter3.875 INCHES NOMINAL IN
Style DesignatorROUND
Mounting Hole TypePLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4320-01-423-43469-0566-01 INTERCHANGEABLE
Ring,wearing
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-44276823-43 INTERCHANGEABLE
Deflector,dirt and Liquid
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-56843-0442-01 INTERCHANGEABLE
Impeller,pump,centrifugal
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-65008-0207-01 INTERCHANGEABLE
Sleeve,shaft,pump
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-423-65278-0209-01 INTERCHANGEABLE
Sleeve,shaft,pump
Air & Liquid Systems Corporation Dba Buffalo Pumps
Cross-Reference Index
Part NumberManufacturer
6823-42 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
NA1798 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
PL.16VHSM-1 ITEM 18A Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
231-31-1514 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
4320-01-423-4346INTERCHANGEABLE
RING,WEARING
9-0566-01
4320-01-423-4427INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
6823-43
4320-01-423-5684INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
3-0442-01
4320-01-423-6500INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
8-0207-01
4320-01-423-6527INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
8-0209-01

Frequently Asked Questions

What is NSN 4320-01-423-4425?

NSN 4320-01-423-4425 is a Deflector,dirt and Liquid, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-423-4425?

NSN 4320-01-423-4425 has 4 cross-referenced part numbers: 6823-42 (Air & Liquid Systems Corporation Dba Buffalo Pumps), NA1798 (Air & Liquid Systems Corporation Dba Buffalo Pumps), PL.16VHSM-1 ITEM 18A (Air & Liquid Systems Corporation Dba Buffalo Pumps), 231-31-1514 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-01-423-4425?

There are 5 known substitutes for 4320-01-423-4425: 4320-01-423-4346, 4320-01-423-4427, 4320-01-423-5684 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6823-42?

Key specifications for 6823-42: Material Thickness: 0.250 INCHES NOMINAL IN; Outside Diameter: 6.000 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR; Mounting Hole Quantity: 1. 10 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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