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11/4X1/4 BLK MI HEX BUSHING
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- MPT
- End Conn Size 2:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.25
- Size 2:
- 0.25
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Bushings
- Product Type:
- Bushing
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 0.33 lbs
ASC Engineered Solutions 318907284 – Frequently Asked Questions
1) What sizes does this ASC black malleable iron hex bushing reduce between?
It steps 1-1/4 inch down to 1/4 inch. The 1-1/4 inch end is male pipe thread (MPT) and threads into a 1-1/4 inch female fitting or coupling; the 1/4 inch end is female pipe thread (FPT) and accepts 1/4 inch male pipe. So it is a reducing bushing, not a coupling: one male end, one female end, in a single hex body.
2) Will a black malleable iron hex bushing thread into standard NPT pipe and fittings?
Yes. Threads are cut to ASME B1.20.1, the standard NPT tapered pipe thread spec, so the 1-1/4 MPT end and 1/4 FPT end mate with any standard NPT pipe, nipple or fitting of those sizes. Use pipe dope or PTFE tape on the tapered threads to seal.
3) Can I use a black malleable iron bushing on a water line, or is it gas and air only?
Black malleable iron is uncoated and will rust in wet service, so it is normally run on natural gas, propane, compressed air, and low pressure steam or hydronic lines, not on potable water. For domestic water you want the galvanized version of the same fitting or a brass bushing. The material here is malleable iron to ASTM A-197 with a plain black finish.
4) Is this hex bushing UL listed or FM approved for a fire sprinkler or gas job?
Yes, the fitting carries UL/FM recognition, which is what an inspector looks for on fire protection and many mechanical gas installations. It is also built to the ASME B16.3 dimensional and pressure standard for malleable iron threaded fittings, so it will match a drawing that calls out B16.3 Class 150 standard weight.
5) I need to tap a 1/4 inch gauge or drain into a 1-1/4 inch port. Is a hex bushing the right fitting for that?
That is exactly what this does. Drop the 1-1/4 MPT end into the 1-1/4 female port and you have a 1/4 FPT tapping for a pressure gauge, sensor, drain cock or small takeoff, in one fitting instead of a bell reducer plus couplings. The hex body gives you wrench flats, so use a wrench on the hex rather than pipe grips. If you need the opposite arrangement, female on the large end, use a reducing coupling or bell reducer instead.
6) Is this bushing standard weight or extra heavy, and what pressure class does that put it in?
It is standard (STD) weight malleable iron, with both dimensions and pressure rating to ASME B16.3. If your spec calls for a 300 class extra heavy fitting, this is not it, look for an XH malleable bushing instead.
7) What is the exact part number to order for the ASC 1-1/4 x 1/4 black hex bushing?
Order ASC Engineered Solutions 318907284. That is the black malleable iron hex bushing, 1-1/4 MPT by 1/4 FPT, standard weight, built to ASME B16.3.
8) How much does one of these 1-1/4 x 1/4 malleable bushings weigh?
About 0.33 lbs each, which matters if you are pricing freight on a full case or stocking a service truck with several sizes. ASC Engineered Solutions part number 318907284.
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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 ASC Engineered Solutions 318907284 come with a warranty?
Absolutely. The ASC Engineered Solutions 318907284 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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