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3 IN SEALING LOCKNUT,RGD/IMC,STL
Manufacturer Resources
Product Specs
- Number Of Batteries:
- 0
- Product Type:
- Locknut for Conduit Fitting
- Department:
- Electrical
- Product Group:
- Conduit & Fittings
- Product Subgroup:
- Conduit Bodies
- Product Type2:
- Locknut for Conduit Fitting
- Product Size:
- 3 Inch
Steel City LS 108 – Frequently Asked Questions
1) What size conduit does the Steel City LS 108 sealing locknut fit?
The LS 108 is a 3 inch sealing locknut. It threads onto 3 inch rigid metal conduit or IMC, so the conduit or fitting thread has to be 3 inch trade size. For any other run size you need the matching trade size locknut, not this one.
2) Can I use the LS 108 locknut with EMT?
No. The LS 108 is specified for rigid (RGD) and IMC conduit, which are threaded raceways. EMT is unthreaded and terminates with a connector, so a threaded sealing locknut of this type is not the right part for an EMT run.
3) What is the difference between a sealing locknut and a standard steel locknut?
A standard locknut just clamps the enclosure wall and bonds the raceway. A sealing locknut like the Steel City LS 108 adds a gasket or sealing face so the connection at the box knockout resists moisture and dust getting in around the thread. If you are terminating 3 inch rigid or IMC into an enclosure that has to keep water out, the sealing version is the one to specify; for a dry indoor pull box, a plain locknut does the same mechanical job.
4) Is the Steel City LS 108 locknut steel or zinc die cast?
Steel. The LS 108 is a steel-bodied sealing locknut, which is what most specs call for on 3 inch rigid and IMC terminations where the fitting is part of the equipment grounding path.
5) How do I order the Steel City 3 inch sealing locknut, and what is the part number?
Order it by the Steel City catalog number LS 108. That is the manufacturer part number and it covers the 3 inch RGD/IMC steel sealing locknut in a single configuration, so there is no finish or option code to pick.
6) Do I need anything else besides the locknut to land 3 inch rigid conduit in a box?
The LS 108 is just the sealing locknut, sold on its own. A typical 3 inch rigid or IMC termination also takes a bushing or insulated throat bushing on the inside of the enclosure to protect the conductors, and in many cases a second locknut on the inside face. Plan those separately.
How fast can I get the Steel City LS 108 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Steel City LS 108 come with a warranty?
Absolutely. The Steel City LS 108 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Steel City LS 108?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Steel City LS 108 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.