NSPA OptiSeal Waterproof Butt Connectors, Crystal Clear Tubing w/ Blue Stripes, 14-16 AWG.

Wire Gauge: BLUE 16-14 AWG
Package Quantities: 10
Sale price$4.09


Blue crimp and seal butt connectors.  These are waterproof* OptiSeal crystal clear heat shrink butt connectors from NSPA.  These connectors are are fully RoHS compliant and made in the USA. There simply is no better product made. 

  • Color: Crystal Clear with Blue Stripe
  • Wire Size: Blue (16-14 AWG)
  • Part #: OS55-14
  • Product Name: SES Opti-Seal, Sealed Crimp Butt Connector
  • Type: Crimp and Seal with Heat Shrink Tubing
  • Seam Type: Seamless


  1. Strip both wires, wire length 5/16" (8mm)
  2. Insert wire into barrel 
  3. Crimp wire to barrel 
  4. Heat tubing 

For best results: Use heat device of at least 1000°F/538°C. Don’t overheat tubing. Don’t isolate flame. Distribute heat evenly over tubing. 

NOTE : Crimping tool and Heat Source to reduce tubing and seal connector needed.  Butane Torch and Ratcheting Crimp tool recommended.  Questions, Please ask.

* There is no official UL Standard for 'waterproof' electrical connectors. Connectors would most likely fall in the IP67 range (IP - Ingress Protection, 6 - Totally protected against dust, 7 - Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes)

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