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USA INDUSTRIALS Pipe Nipple: Brass, 4 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends - Schedule 40 Brass Pipe & Pipe Nipples with Thread Sealant
USA INDUSTRIALSSchedule 40 Brass Pipe & Pipe Nipples with Thread Sealant

USA INDUSTRIALS Pipe Nipple: Brass, 4 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends

The USA INDUSTRIALS Pipe Nipple is a Schedule 40 brass pipe nipple threaded on both ends with Male NPT x Male NPT connections, featuring a 4 in nominal pipe size and 6 in overall length. It includes PTFE thread…

SKU 3G-OTH-649791

Brand
USA INDUSTRIALS
Item
Pipe Nipple: Brass, 4 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends
Category
Schedule 40 Brass Pipe & Pipe Nipples with Thread Sealant
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Technical Specifications

USA INDUSTRIALS
Manufacturer Part Number
ZUSA-PF-21971
Type
Threaded on Both Ends, Schedule 40
Overall Lg
6 in
Connection Type
Male NPT x Male NPT
Nominal Pipe Size
4 in
Thread Sealant Type
PTFE
Maximum Steam Pressure
561 psi @ 300 °F
Maximum Operating Pressure
125 psi @ 72°F
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USA INDUSTRIALS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The USA INDUSTRIALS Pipe Nipple is a Schedule 40 brass pipe nipple threaded on both ends with Male NPT x Male NPT connections, featuring a 4 in nominal pipe size and 6 in overall length. It includes PTFE thread sealant and is rated for a maximum operating pressure of 125 psi @ 72°F and a maximum steam pressure of 561 psi @ 300 °F.

Frequently Asked Questions

What is a USA INDUSTRIALS Schedule 40 brass pipe nipple used for?

This brass pipe nipple connects two male NPT threaded fittings in industrial piping systems for water, air, or steam service. It is commonly used in plumbing, HVAC, and process lines where corrosion resistance and a leak-tight seal are required.

What are the specifications of the USA INDUSTRIALS ZUSA-PF-21971 pipe nipple?

This Schedule 40 brass nipple has a 4 in nominal pipe size, 6 in overall length, and Male NPT x Male NPT connections. It includes PTFE thread sealant and is rated for 125 psi @ 72°F operating pressure and 561 psi @ 300 °F steam pressure.

Where to buy USA INDUSTRIALS pipe nipples worldwide?

3G Electric supplies USA INDUSTRIALS pipe nipples to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Schedule 40 brass nipple with PTFE sealant.

How to install a threaded brass pipe nipple?

Apply PTFE tape or sealant to the male threads, hand-tighten the nipple into the female fitting, then use wrenches on the nipple's hex section to tighten one to two additional turns. Avoid over-tightening to prevent cracking the brass.

Used in

Common applications for USA INDUSTRIALS
Chemical processing — USA INDUSTRIALS FEP-encapsulated silicone cam-and-groove gaskets for corrosion-resistant sealing in coupling systems.
Food and beverage — USA INDUSTRIALS food-grade FKM cam-and-groove gaskets for sanitary fluid transfer in processing lines.
Water treatment — USA INDUSTRIALS 304 stainless steel gate valves for isolation in piping systems handling non-potable water.
Oil and gas — USA INDUSTRIALS brass ball valves for manual shut-off in low-pressure gas or fluid lines.
Pharmaceutical manufacturing — USA INDUSTRIALS 316 stainless steel globe valves for precise flow control in clean-room environments.
General industrial MRO — USA INDUSTRIALS polypropylene cam-and-groove fittings for temporary hose connections in plant maintenance.

USA INDUSTRIALS Products

3G Electric supplies USA INDUSTRIALS schedule 40 brass pipe & pipe nipples with thread sealant. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Pipe Nipple: Brass, 1 1/2 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21863). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 731 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1 1/2 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21863). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 731 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 1/2 in Nominal Pipe Size, 18 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21830). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 267 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1/2 in Nominal Pipe Size, 18 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21830). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 267 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 3/8 in Nominal Pipe Size, 8 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21952). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 276 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 3/8 in Nominal Pipe Size, 8 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21952). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 276 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 3 in Nominal Pipe Size, 3 1/2 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21929). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 576 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 3 in Nominal Pipe Size, 3 1/2 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21929). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 576 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 2 1/2 in Overall Lg, Threaded on Both Ends, Seamless (MPN ZUSA-PF-21851). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 373 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 2 1/2 in Overall Lg, Threaded on Both Ends, Seamless (MPN ZUSA-PF-21851). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 373 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 1 1/2 in Nominal Pipe Size, 3 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21866). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 731 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1 1/2 in Nominal Pipe Size, 3 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21866). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 731 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 3 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21853). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 373 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 3 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21853). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 373 psi @ 450 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
Pipe Nipple: Brass, 1 1/4 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21881). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 796 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
USA INDUSTRIALS
Pipe Nipple: Brass, 1 1/4 in Nominal Pipe Size, 6 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21881). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 796 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.