PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CA10994-19Ring,wearing

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-00-932-0890 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-932-0890 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-932-0890. Primary manufacturer part number: CA10994-19.
Features
  • Ring,wearing — FSC 4320
  • Internal Flange Width: 0.312 INCHES NOMINAL IN
  • Largest External Anchor Flange Radius: 2.156 INCHES NOMINAL IN
  • Smallest External Anchor Flange Radius: 1.938 INCHES NOMINAL IN
  • Distance From End: 0.438 INCHES NOMINAL IN
  • Distance Below Centerline: 0.062 INCHES NOMINAL IN
  • Material: COPPER ALLOY 903
  • Body Outside Diameter: 3.999 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy 903 construction
General Description

The Ring,wearing, cataloged under National Stock Number 4320-00-932-0890, 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 16 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-932-0890
Primary Part NumberCA10994-19
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Internal Flange Width0.312 INCHES NOMINAL IN
Largest External Anchor Flange Radius2.156 INCHES NOMINAL IN
Smallest External Anchor Flange Radius1.938 INCHES NOMINAL IN
Distance From End0.438 INCHES NOMINAL IN
Distance Below Centerline0.062 INCHES NOMINAL IN
MaterialCOPPER ALLOY 903
Body Outside Diameter3.999 INCHES NOMINAL IN
Body StyleINTERNAL FLANGE W/EXTERNAL LOCKING FLANGE
Left Side Flange Thickness0.238 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
Body Inside Diameter3.375 INCHES NOMINAL IN
Internal Flange Inside Diameter2.062 INCHES NOMINAL IN
Right Side Flange Thickness0.238 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
End to Flange Distance0.497 INCHES NOMINAL IN
Distance Between Flanges0.250 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
Material Document and ClassificationQQ-C-390 D5 FED SPEC SINGLE MATERIAL RESPONSE
Corner ShapeSQUARE ALL CORNERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3120-00-932-0887CA10994-11 INTERCHANGEABLE
Bushing,sleeve
Air & Liquid Systems Corporation Dba Buffalo Pumps
5365-00-932-088855-22078-64 INTERCHANGEABLE
Bushing,throat,seal
Euramco Safety Inc
4320-00-932-0889CA6067-19 INTERCHANGEABLE
Ring,lantern
Air & Liquid Systems Corporation Dba Buffalo Pumps
3120-00-932-0891CA10994-20 INTERCHANGEABLE
Bearing,sleeve
Air & Liquid Systems Corporation Dba Buffalo Pumps
5365-00-932-08928130 INTERCHANGEABLE
Spacer,sleeve
Air & Liquid Systems Corporation Dba Buffalo Pumps
5330-00-932-08938131 INTERCHANGEABLE
Retainer,packing
Air & Liquid Systems Corporation Dba Buffalo Pumps
4320-00-932-0894CA10994-9-1 INTERCHANGEABLE
Ring,wearing
Air & Liquid Systems Corporation Dba Buffalo Pumps
3040-01-162-2686CA10994-7 INTERCHANGEABLE
Shaft,shouldered
Air & Liquid Systems Corporation Dba Buffalo Pumps
Cross-Reference Index
Part NumberManufacturer
CA10994-19 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA10994 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
3120-00-932-0887INTERCHANGEABLE
BUSHING,SLEEVE
CA10994-11
5365-00-932-0888INTERCHANGEABLE
BUSHING,THROAT,SEAL
55-22078-64
4320-00-932-0889INTERCHANGEABLE
RING,LANTERN
CA6067-19
3120-00-932-0891INTERCHANGEABLE
BEARING,SLEEVE
CA10994-20
5365-00-932-0892INTERCHANGEABLE
SPACER,SLEEVE
8130
5330-00-932-0893INTERCHANGEABLE
RETAINER,PACKING
8131
4320-00-932-0894INTERCHANGEABLE
RING,WEARING
CA10994-9-1
3040-01-162-2686INTERCHANGEABLE
SHAFT,SHOULDERED
CA10994-7

Frequently Asked Questions

What is NSN 4320-00-932-0890?

NSN 4320-00-932-0890 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 4320-00-932-0890?

NSN 4320-00-932-0890 has 2 cross-referenced part numbers: CA10994-19 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA10994 (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-00-932-0890?

There are 8 known substitutes for 4320-00-932-0890: 3120-00-932-0887, 5365-00-932-0888, 4320-00-932-0889 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CA10994-19?

Key specifications for CA10994-19: Internal Flange Width: 0.312 INCHES NOMINAL IN; Largest External Anchor Flange Radius: 2.156 INCHES NOMINAL IN; Smallest External Anchor Flange Radius: 1.938 INCHES NOMINAL IN; Distance From End: 0.438 INCHES NOMINAL 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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