SKU: 65437423766

3 x 7 Schedule 80 Seamless Black Nipple

Sale price$44.62 Regular price$49.58
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

3 x 7 Schedule 80 Seamless Black NippleThe 3 x 7 Schedule 80 Seamless Black Nipple is a durable pipe fitting with a 3 inch diameter and 7 inch length, made from seamless carbon steel. Featuring a Schedule 80 wall thickness, it offers increased pressure resistance, making it suitable for high pressure applications. The black oxide finish provides moderate corrosion protection, while the NPT or BSPT threaded ends ensure secure, leak proof connections. Ideal for use in water, gas, chemical

The 3 x 7 Schedule 80 Seamless Black Nipple is a durable pipe fitting with a 3-inch diameter and 7-inch length, made from seamless carbon steel. Featuring a Schedule 80 wall thickness, it offers increased pressure resistance, making it suitable for high-pressure applications. The black oxide finish provides moderate corrosion protection, while the NPT or BSPT threaded ends ensure secure, leak-proof connections. Ideal for use in water, gas, chemical pipelines, and HVAC systems.

Specification Details
TYPE Schedule 80 Seamless Black Nipple
DESIGN Wall Thickness designed to provide increased strength and pressure resistance
MATERIAL Steel for high strength and corrosion resistance.
MATERIAL CONSTRUCTION Steel 
WEIGHT (LBS) 2.400
CONNECTION SIZE 1 3"
CONNECTION SIZE 2 3"
CONNECTION TYPE MPT|MPT
CONNECTION TYPE 1 MPT
CONNECTION TYPE 2 MPT
DIAMETER 3"
DIMENSIONS STANDARDS ANSI B1.20.1
FINISH Black
FITTING TYPE Nipple
LENGTH  7"
PRESSURE CLASS 300 lb
PRESSURE RATING 2500 psi
SCHEDULE RATING SCH 80
TEMPERATURE RATING -200 to 150 deg F
THREAD LENGTH 1.64"
THREAD SIZE 3-8
WALL THICKNESS 0.03"
APPLICATIONS Ideal for Water Systems, Gas Pipelines, Oil Systems, Industrial Piping, HVAC Systems, Plumbing and Pneumatic. 
BRAND Midland Industries

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 65437423766

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4.0 ★★★★★
Based on 10 reviews
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Verified Purchase
James P McMahon
New York, US
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!! No more split skin on my heels!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
P
Verified Purchase
Paula S
Bozeman, US
★★★★★ 3
Quality and Price
Color: Original Grey
For me a little tight on my ankles
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
K
Verified Purchase
K. Davis
Los Angeles, US
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
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Reviewed in the United States on April 28, 2026
K
Verified Purchase
Kim C
Natrona Heights, US
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026
A
Verified Purchase
Aaron Duncan
Natrona Heights, US
★★★★★ 5
Good socks they work.
Size: 2 pairs black L
I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.
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Reviewed in the United States on August 28, 2025

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