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4041 Series

GATTI patented High-Cohesive® threaded sapphire waterjet orifice assembly. Proprietary internal technology delivers superior jet cohesiveness to minimize energy loss and maximize performance.

High-Cohesive® orifices are 100% tested at 50,000 PSI prior to shipping to confirm the jet coherency meets our high standards.

GATTI sapphire orifice jewels are manufactured using a proprietary polishing process to ensure consistent quality, high performance, and long life.

  • 3/8-24 UNF thread, extended length housing**
  • 3/4″ overall length for deep c’bores**
  • 5/16″ hex head for recessed c’bores
  • Stainless steel mount
  • For use up to 55,000 PSI / 3,792 bar
  • Laser marked orifice size
  • Most common sizes stocked for same-day shipping


Part No. Ordering Format
4041-XX (XX= orifice size)
Standard Orifice Sizes
.004″ – .032″
Plug Part No.
Additional Sizes Available
.003″ | .033″ – .050″

* High Cohesive® nozzles are manufactured only by A.M. Gatti, Inc.  Beware of imitations.

** The 4041 Series must only be used in extra-deep counterbores with full thread engagement.  Use of this product in standard depth 3/8-24 UNF counterbores will result in insufficient thread engagement for safe operation at UHP.  Please contact GATTI with any questions prior to use.