SKU: 40349096458

3 x 3 1/2 Schedule 80 Seamless Black Nipple

Sale price$46.77 Regular price$51.97
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Description

3 x 3 1/2 Schedule 80 Seamless Black NippleThe 3 x 3 1 2 Schedule 80 Seamless Black Nipple is a robust, high performance pipe fitting designed to provide secure, leak proof connections in high pressure systems. With a 3 inch diameter and a 3. 5 inch length, this seamless carbon steel nipple features a Schedule 80 thickness, ensuring superior strength and pressure resistance compared to standard Schedule 40 fittings. The black oxide finish offers moderate corrosion resistance, making it

The 3 x 3 1/2 Schedule 80 Seamless Black Nipple is a robust, high-performance pipe fitting designed to provide secure, leak-proof connections in high-pressure systems. With a 3-inch diameter and a 3.5-inch length, this seamless carbon steel nipple features a Schedule 80 thickness, ensuring superior strength and pressure resistance compared to standard Schedule 40 fittings. The black oxide finish offers moderate corrosion resistance, making it suitable for demanding applications in water, gas, chemical, fire protection, 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) 2.33
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  3-1/2"
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

 

Link to Midland Industries Catalog

Shipping Notes
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Exchange/Return Notes
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SKU: 40349096458

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4.4 ★★★★★
Based on 11 reviews
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M
Verified Purchase
Mark
Chelsea, US
★★★★★ 2
Decent, but be careful of frequent use.
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Fixed my over temp warning issue.
Easy to change and work like new. No more over temp warning at idle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025
M
Verified Purchase
Michael Rhodes
Birmingham, US
★★★★★ 5
Outboard thermostat
Works fine. A little pricey but better to buy the best than risk a cheap failure and destroy your engine like i did once.
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Reviewed in the United States on May 29, 2026
C
Verified Purchase
carlos febus
Birmingham, US
★★★★★ 5
Good
Good
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Reviewed in the United States on April 27, 2026
W
Verified Purchase
Will Rhoden
Phoenix, US
★★★★★ 5
Works as it should
Works as it should
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Reviewed in the United States on March 24, 2026

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