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PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
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NAVTEC BY HAYN

The NAVTEC K150 Micro Stemball Tang is the chainplate fitting designed to receive the F235 Micro Stemball, providing a compact, low-profile ball seat at the deck or hull fitting that allows the rod to articulate freely at the lower terminal interface. 

NAVTEC by Hayn - Strong Where It Matters

NAVTEC K150 Micro Stemball Tangs

The tang seats the Micro Stemball at the chainplate end of the rod assembly, completing the ball-and-socket connection that distributes bending stress at the terminal rather than concentrating it at a fixed interface — the same fatigue-reduction principle that drives the entire NAVTEC stemball system. The compact body diameter makes it the right choice for installations where a full-size spreader tip cup or tang would create clearance problems at the deck fitting. Available in 12 sizes covering NAVTEC rod sizes from -04 through -60, with body diameters from 3/4" through 2-5/8" and minimum lengths from 4.0" through 8.0" depending on rod size. 
Request specifications
NAVTEC k150-micro-stemball-tangs
Hayn Part # NAVTEC Part # W-Rod Size B-Body Dia. P-Thread Size L-Length Min.
HYN-MSBT-04 K150-004 -04 3/4″ 9/16-18 4.0″ Min.
HYN-MSBT-06 K150-006 -06 13/16″ 5/8-18 4.0″ Min.
HYN-MSBT-08 K150-008 -08 15/16″ 3/4-16 4.0″ Min.
HYN-MSBT-10 K150-010 -10 1.0″ 3/4-16 6.0″ Min.
HYN-MSBT-12 K150-012 -12 1-3/16″ 7/8-14 6.0″ Min.
HYN-MSBT-15 K150-015 -15 1-5/16″ 1.0-12 6.0″ Min.
HYN-MSBT-17 K150-017 -17 1-5/16″ 1.0-12 6.0″ Min.
HYN-MSBT-22 K150-022 -22 1-1/2″ 1-1/8-12 6.0″ Min.
HYN-MSBT-30 K150-030 -30 1-7/8″ 1-3/8-12 6.0″ Min.
HYN-MSBT-40 K150-040 -40 2-1/16″ 1-1/2-12 8.0″ Min.
HYN-MSBT-48 K150-048 -48 2-1/4″ 1-5/8-12 8.0″ Min.
HYN-MSBT-60 K150-060 -60 2-5/8″ 1-7/8-12 8.0″ Min.
Engineered In America Every Hayn fitting is designed and manufactured at our facility in Rocky Hill, Connecticut — the same American workmanship that has set the standard for stainless steel rigging hardware since 1950.
Cold-Worked Production Hayn fittings are cold-worked, not cast. That distinction matters: the cold-working process refines grain structure, increases fatigue resistance, and produces a fundamentally stronger component — one built to perform when the load comes on it.
NAVTEC ENGINEERING STANDARDS NAVTEC components are engineered to perform under the exact conditions that demand the most from your rigging — offshore passages, high-load racing applications, and everything in between. Every fitting is precision-machined to tight tolerances, built from high-grade stainless steel, and designed to integrate seamlessly into rod rigging systems where failure is not an option. 
YOUR EXCLUSIVE SOURCE FOR NAVTEC Hayn is the sole authorized manufacturer and supplier of NAVTEC rigging components. That means every part you order is made to the original specifications, backed by Hayn's manufacturing expertise, and supported by our team in Rocky Hill. There is no other legitimate source for new NAVTEC product — what you get here is the real thing. 
  • Type 316 stainless steel construction for superior saltwater corrosion resistance
  • Manufactured in Rocky Hill, Connecticut to Hayn's proprietary tolerances
  • Precision-machined using advanced CNC manufacturing equipment



  • Engineered for seamless integration in marine and architectural rigging systems

  • Short lead times on both standard and custom components

  • Backed by 75 years of marine and architectural hardware expertise

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Let's Build Something Together

 Hayn has been engineering precision rigging hardware since 1950. So whatever your project demands, you're building with hardware that's been proven at sea and on structure for generations. 
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