Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")
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Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")

Brass BSP Reducing Nipple Connector — Male to Female Pipe Fitting Adapter (1/8" to 1")

HomeDIYer
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By HomeDIYer®

Price:
$2.22 USD
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In stock (500 units), ready to be shipped

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Description

 

Brass BSP Reducing Nipple Connector — Reliable Male-to-Female Pipe Fitting Adapter

When your plumbing, pneumatic, or gas line runs into a size mismatch, the wrong fitting can mean hours of rework, leaks, or a costly service call. DIYers, contractors, and workshop builders who work with BSP-threaded systems need a reducing nipple they can trust to seal cleanly the first time. These brass BSP male-to-female reducing nipple connectors are built for exactly that job.

Each connector features a female BSP socket on one end and a male BSP thread on the other, allowing you to step down (or step up) between two different pipe sizes in a single compact fitting. Available in a wide range of size combinations — from 1/8" female × 1/4" female up to 1" female × 3/4" male — and sold in packs of 1, 2, 5, or 10 for both one-off repairs and bulk project needs. The body is machined from brass, offering a balance of corrosion resistance and thread integrity across a range of temperatures.

These reducing nipples are well-suited for residential and commercial plumbing pipe size transitions, compressed air line assemblies where different tool ports require adapting, and low-pressure gas distribution systems in workshops or outdoor installations. Long-tail applications include BSP pipe reducer fittings for air compressors, brass reducing bush connectors for water supply lines, and male-to-female BSP adapters for hydraulic manifolds.

🔗 Thread Standard: BSP (British Standard Pipe) — BSPP or BSPT depending on variant. Not directly compatible with NPT threads. Verify your system thread standard before ordering.

✅ Key Features of These Brass BSP Reducing Nipple Connectors

  • 🔩Wide Size Range — Available in 16 size combinations from 1/8" up to 1", covering the most common BSP pipe reducer fitting needs in plumbing and pneumatic systems.
  • 🟡Solid Brass Construction — Machined brass body resists corrosion in water, air, and low-pressure gas lines, maintaining thread integrity over repeated assembly cycles.
  • 🔄Male-to-Female Reducing Design — One-piece body transitions between two BSP pipe sizes without additional couplings, keeping your assembly compact and leak points minimal.
  • 📦Flexible Pack Quantities — Choose from 1, 2, 5, or 10 pieces per order — ideal whether you need a single replacement or a supply for a larger installation project.
  • 🔧Wrench-Flat Hex Body — The hex profile allows standard wrench tightening for a secure, torque-controlled connection without slipping or damaging the fitting.
  • 💧Leak-Resistant Thread Form — BSP thread profile is designed for use with PTFE tape or thread sealant, creating a reliable seal in water supply, compressed air, and gas line applications.

📐 Technical Specifications — Brass BSP Reducing Nipple Fittings

Product Type BSP Male-to-Female Reducing Nipple Connector
Material Brass
Thread Standard BSP (British Standard Pipe)
Female End Sizes 1/8", 1/4", 3/8", 1/2", 3/4", 1"
Male End Sizes 1/8", 1/4", 3/8", 1/2", 3/4"
Available Size Combinations 16 combinations — see variant selector
Pack Quantities 1, 2, 5, or 10 pieces
Body Profile Hex (wrench-flat)
Finish Natural brass
Recommended Sealant PTFE thread tape or thread compound
Typical Working Pressure See variant options — contact us to confirm for your application
Compatible Media Water, air, low-pressure gas (verify for specific fluids)
Country of Origin See variant options
⚠️ Not sure which size you need? Check your existing pipe thread diameter against the BSP size chart, or contact us before ordering — we're happy to help you confirm the right combination.

❓ Frequently Asked Questions

How do I choose the right size reducing nipple for my pipe?

Measure the outer diameter of your existing pipe threads and match them to the BSP standard. For example, a 1/4" BSP thread typically has an outer diameter of about 13.16mm (≈0.518"). Select the female end to match your existing pipe and the male end to match the fitting or equipment you're connecting to. When in doubt, a thread gauge is the most reliable tool.

What material are these reducing nipples made from?

These connectors are made from brass, which generally offers good corrosion resistance, machinability, and durability for water, air, and low-pressure gas applications.

Can these fittings be used outdoors or in wet environments?

Brass is generally suitable for outdoor and wet environments due to its natural corrosion resistance. For prolonged outdoor exposure or aggressive environments, applying PTFE thread tape and ensuring proper sealing is recommended.

Are these compatible with NPT (National Pipe Thread) fittings?

These fittings use BSP (British Standard Pipe) threads, which are not directly interchangeable with NPT threads. BSP and NPT have different thread angles (55° vs 60°) and pitches. Mixing them can cause leaks. If you need NPT compatibility, please contact us to confirm before ordering.

What is the maximum pressure rating for these fittings?

Brass BSP reducing nipples of this type are generally rated for low-to-medium pressure applications. Typical working pressure is in the range of 150–300 PSI depending on size and application, but we recommend confirming with your system specifications. Contact us to confirm for your specific use case.

Do I need thread sealant or PTFE tape with these fittings?

Yes. BSPP (parallel) threads typically require PTFE tape or a thread sealant compound to achieve a leak-free seal. BSPT (tapered) threads can self-seal under pressure but still benefit from PTFE tape. We recommend applying 2–3 wraps of PTFE tape for most applications.

What fluids or gases are these fittings compatible with?

Brass fittings are generally compatible with water, air, natural gas, propane, and many hydraulic fluids. They are not recommended for use with ammonia, acetylene, or highly acidic/alkaline fluids. Always verify compatibility with your specific media before installation.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

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