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LEGRISNylon & Nickel-Plated Brass Tube Fittings

LEGRIS Push-to-Connect x MNPT Tube Fitting

The LEGRIS Push-Fit Fitting (MPN 3121 08 14) is a nylon and nickel-plated brass tube fitting in a push-to-connect x MNPT configuration, sized for 5/16 in OD tube and 1/4 in pipe. Supplied as a 10-pack in silver, this…

SKU 3G-OTH-492322

Also listed as: 31210814 · 3121-08-14

Brand
LEGRIS
Item
Push-to-Connect x MNPT Tube Fitting
Part Number
3121 08 14
Category
Nylon & Nickel-Plated Brass Tube Fittings
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LEGRIS
Manufacturer Part Number
3121 08 14
Type
Push-to-Connect x MNPT, Brass, Silver, 10 PK

Technical Documents

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LEGRIS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LEGRIS Push-Fit Fitting (MPN 3121 08 14) is a nylon and nickel-plated brass tube fitting in a push-to-connect x MNPT configuration, sized for 5/16 in OD tube and 1/4 in pipe. Supplied as a 10-pack in silver, this fitting is part of our broader industrial offering across 14 departments, with specialist depth in pneumatics and controls as an authorised distributor for brands like Festo and LEGRIS.

Frequently Asked Questions

What is a LEGRIS Push-Fit Fitting used for?

A LEGRIS Push-Fit Fitting connects 5/16 in OD nylon or polyurethane tubing to a 1/4 in male NPT port in pneumatic systems. It provides a quick, leak-free seal without tools, ideal for industrial automation, packaging, and material handling applications across 14 departments.

What are the specifications of the LEGRIS 3121 08 14 fitting?

The LEGRIS 3121 08 14 is a push-to-connect x MNPT fitting for 5/16 in OD tube and 1/4 in pipe size. It is made of nickel-plated brass and nylon, supplied as a 10-pack in silver. This fitting is part of our pneumatics and controls specialist offering alongside brands like Festo.

Where to buy LEGRIS push-fit fittings worldwide?

3G Electric supplies LEGRIS push-fit fittings worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine parts like the 3121 08 14 to your facility. Contact us for a quote and lead time on your order.

How to install a LEGRIS push-to-connect fitting?

To install a LEGRIS push-to-connect fitting, cut the tube square, push it fully into the collet until it stops, then pull back slightly to lock. For the MNPT end, apply thread sealant and tighten to 1.5 bar max. Always depressurize the system before disassembly.

Used in

Common applications for LEGRIS
Pneumatic actuator speed control — LEGRIS miniature flow control valve 7665 04 10 for meter-out regulation on 4 mm tubing
Compressed air isolation for maintenance — LEGRIS lockout valve 7886 11 11 for 1/8 in NPT systems
Fluid shutoff in water or oil lines — LEGRIS brass ball valve 0492 07 17 with 3/8 in FNPT connections
Push-to-connect air distribution — LEGRIS nylon ball valve 7915 56 11 for 1/4 in tubing with male NPT adapter
Safety lockout on BSPP pneumatic circuits — LEGRIS lockout valve 7880 10 17 for 3/8 in BSPP systems
Compact on/off control in tight spaces — LEGRIS nylon ball valve 7913 56 00 with push-to-connect ports for 1/4 in tubing
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LEGRIS Products

3G Electric supplies LEGRIS nylon & nickel-plated brass tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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