PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CA9043-9Ring,wearing

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-01-195-3869 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-195-3869 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-195-3869. Primary manufacturer part number: CA9043-9.
Features
  • Ring,wearing — FSC 4320
  • Hole Diameter: 0.125 INCHES NOMINAL IN
  • Body Style: EXTERNAL AND INTERNAL FLANGE
  • Internal Flange Width: 0.250 INCHES NOMINAL IN
  • Body Outside Diameter: 3.998 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Center Flange Thickness: 0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
  • Corner Shape: SQUARE INSIDE LEFT CORNER
Applications
  • Applications requiring Copper Alloy 903 construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-195-3869, 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 18 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-195-3869
Primary Part NumberCA9043-9
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Hole Diameter0.125 INCHES NOMINAL IN
Body StyleEXTERNAL AND INTERNAL FLANGE
Internal Flange Width0.250 INCHES NOMINAL IN
Body Outside Diameter3.998 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Center Flange Thickness0.185 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE LEFT CORNER
MaterialCOPPER ALLOY 903
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Material Document and ClassificationML-M-16576 MIL SPEC SINGLE MATERIAL RESPONSE
Surface Finish125.0 MICROINCHES ALL SURFACES
Hole Depth0.188 INCHES NOMINAL IN
End to Flange Distance0.281 INCHES NOMINAL IN
Corner ShapeROUND INSIDE RIGHT CORNER
Flange Diameter4.214 INCHES MINIMUM AND 4.219 INCHES MAXIMUM IN
Body Inside Diameter2.639 INCHES MINIMUM AND 2.641 INCHES MAXIMUM IN
Internal Flange Inside Diameter2.250 INCHES NOMINAL IN
Corner Radius0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4320-00-018-2719CA10595-1000 INTERCHANGEABLE
Rotor,pump
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-01-189-0560L2316 INTERCHANGEABLE
Deflector,dirt and Liquid
Rps-Fl, Inc. Dba Rps Inc
4320-01-195-387011095 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
Cross-Reference Index
Part NumberManufacturer
CA9043-9 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA9043 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
PL1.5VCM-1 ITEM 9 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
4320-00-018-2719INTERCHANGEABLE
ROTOR,PUMP
CA10595-1000
4320-01-189-0560INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
L2316
4320-01-195-3870INTERCHANGEABLE
RING,WEARING
11095

Frequently Asked Questions

What is NSN 4320-01-195-3869?

NSN 4320-01-195-3869 is a Ring,wearing, 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 4320-01-195-3869?

NSN 4320-01-195-3869 has 3 cross-referenced part numbers: CA9043-9 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA9043 (Air & Liquid Systems Corporation Dba Buffalo Pumps), PL1.5VCM-1 ITEM 9 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-01-195-3869?

There are 3 known substitutes for 4320-01-195-3869: 4320-00-018-2719, 4320-01-189-0560, 4320-01-195-3870. Verify interchangeability with system specifications before substitution.

What are the specifications of CA9043-9?

Key specifications for CA9043-9: Hole Diameter: 0.125 INCHES NOMINAL IN; Body Style: EXTERNAL AND INTERNAL FLANGE; Internal Flange Width: 0.250 INCHES NOMINAL IN; Body Outside Diameter: 3.998 INCHES MINIMUM AND 3.999 INCHES MAXIMUM IN. 19 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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