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1 1/2 BUSHING,RGD/IMC,NM,INSUL,EA
Manufacturer Resources
Product Specs
- Product Group:
- Conduit & Raceway
- Product Type:
- Conduit Bushing
- Product Size:
- 1-1/2 Inch
- Number Of Batteries:
- 0
- Department:
- Electrical
- Product Type2:
- Insulated Bushing
- Product Subgroup:
- Conduit Fittings
Steel City BU505-1 – Frequently Asked Questions
1) What size conduit does the Steel City BU505 insulated bushing fit?
The BU505 is a 1-1/2 inch bushing, so it threads onto 1-1/2 inch rigid (RGD) or intermediate metal conduit (IMC). It will not work on 1-1/4 or 2 inch conduit; those take the matching trade size bushing.
2) Does the Steel City BU505 come as a single piece or only by the case?
Both. Pack Quantity is a choice on the BU505: order 1/EA as MPN BU505-1 for a single bushing, or the Case Pack under MPN BU 505 if you are stocking a truck or a job trailer.
3) Can I use a BU505 bushing on threaded rigid conduit and IMC both?
Yes. The BU505 is listed for both rigid conduit and IMC in 1-1/2 inch trade size, which share the same thread, so one bushing covers either raceway.
4) What does the insulated part of this bushing actually do?
The BU505 is an insulated bushing, meaning it carries an insulating throat that protects conductor insulation from the cut thread end of the conduit as wire is pulled. That is the reason it gets specified on conduit ends terminating in boxes, panels and gutters rather than a plain metal bushing.
5) Is a bushing like the BU505 the same thing as a conduit locknut, or do I need both?
They are different parts and most 1-1/2 inch rigid or IMC terminations use both. Locknuts clamp the conduit to the enclosure wall; the BU505 insulated bushing threads on to shield the conductors from the thread end. Ordering bushings alone will not secure the conduit to the box.
6) I am standardizing 1-1/2 inch conduit terminations across a building. Is one bushing part number enough?
For 1-1/2 inch rigid and IMC runs, the BU505 covers both raceway types in that trade size, so a single part number handles those terminations across the facility. Other trade sizes on the job still need their own matching bushing.
How fast can I get the Steel City BU505-1 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 BU505-1 come with a warranty?
Absolutely. The Steel City BU505-1 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 BU505-1?
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 BU505-1 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.