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July 2025
NI-9939
NI-9939, 16 Position Screw Terminal or Spring Terminal, Backshell Kit
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments NI-9939 Backshell Kit
The NI-9939 (Part Numbers: 785082-01, 192692-01, 192692A-01) is a Backshell Kit from National Instruments. This kit is designed to protect the operator from HV signals. The NI 9939 can be deployed with any 16-position screw terminal or 16-position spring terminal connector block. This Backshell Kit is recommended to be used with devices such as the National Instruments NI-9485, NI-9924, NI-9928, NI-9436, and NI-9217. The NI-9939 Backshell Kit provides maximum protection to the operator from electric shocks and hazards.
The two part numbers of the NI-9939 refer to the different connector terminals. Part number 192692-01 is the backshell for screw terminal connections, while part number 785082-01 is the backshell for spring terminal connections.
The strain relief function of the NI-9939 is designed to hold the cable in the right position. Thus, you can use this device for connectivity between a rigid connection point and a flexible cable. This NI-9939 Backshell Kit is a versatile device because it can be used with various devices. However, a single NI 9939 Backshell Kit can secure only one 16-position terminal. You would need additional NI-9939 Backshell Kits if you needed to use them with more than one 16-position screw terminal.
| Model | NI-9939 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 785082-01, 192692-01, 192692A-01 |
| Type | Backshell Kit |
| Connections | 16-Position Screw Terminal or 16-Position Spring Terminal |
| Compatible Models | 16-Position Spring Terminal or Screw Terminal Connector Blocks |
| NI-9939 Manual | User Manual and Maintenance Manual Available for Download |
| Pricing | Contact a Sales Representative for a quote. |
Associated part numbers for NI-9939:
National Instruments NI-9939 Frequently Asked Questions
Question: Are there any connector types that are not compatible with backshell kits?
Answer: According to NI, it is not recommended to use backshells with DSUB connectors.
Question: What type of wire should be used to install the NI 9939?
Answer: The wire used to install the backshell kit should be 30 AWG to 14 AWG with 6 mm (0.24 in.) of the insulation stripped from the end.
Question: Are there any restrictions for the wire diameter of the NI 9939 Backshell when all 16 terminals are used?
Answer: Yes, the total maximum diameter for wires (including insulation) when connecting all 16 terminals should not exceed 2.3 mm (0.09 in.) per wire.
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