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USA INDUSTRIALS Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 2 1/2 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, 1/8 in Nominal Pipe Size, 2 1/2 in Overall Lg, Threaded on Both Ends

The USA INDUSTRIALS Pipe Nipple is a Schedule 40 brass nipple with PTFE thread sealant, threaded on both ends (Male NPT x Male NPT), seamless, 1/8 in nominal pipe size, and 2 1/2 in overall length. It is rated for a…

SKU 3G-OTH-649911

Brand
USA INDUSTRIALS
Item
Pipe Nipple: Brass, 1/8 in Nominal Pipe Size, 2 1/2 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-21851
Type
Threaded on Both Ends, Seamless
Overall Lg
2 1/2 in
Connection Type
Male NPT x Male NPT
Nominal Pipe Size
1/8 in
Thread Sealant Type
PTFE
Maximum Steam Pressure
373 psi @ 450 °F
Maximum Operating Pressure
125 psi @ 72°F
View Full Spec Sheet

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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 nipple with PTFE thread sealant, threaded on both ends (Male NPT x Male NPT), seamless, 1/8 in nominal pipe size, and 2 1/2 in overall length. It is rated for a maximum operating pressure of 125 psi @ 72°F and a maximum steam pressure of 373 psi @ 450 °F.

Frequently Asked Questions

What is a USA INDUSTRIALS brass pipe nipple used for?

This Schedule 40 brass nipple connects two male NPT threaded fittings in low-pressure fluid, gas, or steam lines. Its PTFE sealant helps prevent leaks at joints. Common in instrumentation, pneumatic controls, and HVAC systems where corrosion resistance and a compact 2 1/2 in length are needed.

What are the specifications of the USA INDUSTRIALS pipe nipple ZUSA-PF-21851?

The nipple is 1/8 in nominal pipe size, 2 1/2 in overall length, seamless, with Male NPT threads on both ends. Maximum operating pressure is 125 psi @ 72°F; maximum steam pressure is 373 psi @ 450 °F. Thread sealant is PTFE. It is a Schedule 40 brass fitting.

Where to buy USA INDUSTRIALS pipe nipple ZUSA-PF-21851 worldwide?

3G Electric supplies and delivers the USA INDUSTRIALS ZUSA-PF-21851 brass pipe nipple to worldwide locations. We handle full logistics and customs clearance as your sourcing partner. Contact us for availability and lead time on this Schedule 40, PTFE-sealed nipple.

How to install a brass pipe nipple with PTFE thread sealant?

Apply pipe thread sealant (PTFE tape or paste) to the male NPT threads, wrapping in the direction of tightening. Hand-tighten the nipple into the female fitting, then use a wrench for an additional 1–2 turns. Do not overtighten, as brass can crack. Test the joint at operating pressure before service.

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.
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.
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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.
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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.
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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 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.
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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.
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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.
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Pipe Nipple: Brass, 4 in Nominal Pipe Size, 5 in Overall Lg, Threaded on Both Ends, Schedule 40 (MPN ZUSA-PF-21965). Key specifications — Maximum Operating Pressure: 125 psi @ 72°F; Maximum Steam Pressure: 561 psi @ 300 °F; Thread Sealant Type: PTFE; Connection Type: Male NPT x Male NPT.
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