• FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
  • FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector-YingZhou Automatization
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FESTO

FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector

FESTO QSL-1/4-4 190659 Push-in L-Fitting R1/4 Male Thread 4mm Tube 90° Elbow Connector

$2.19 USD
$2.19 USD
Obral Habis
Model Number
YingZhou Industrial Automation | Product Information

FESTO QSL-1/4-4 190659 Push-in L-Fitting

R1/4 Male Thread | 4mm Tube OD | 2.8mm Nominal Diameter | 90° Elbow
✓ IN STOCK & AVAILABLE TO ORDER  |  Actual Product Photos  |  Packaging Model Verified
Specification Verified Product Data
Manufacturer FESTO
Catalog Number QSL-1/4-4
Part Number 190659
Product Family QSL
Product Type Push-in L-Fitting
Product Size Standard
Design L-shape
Structural Principle Push-pull Principle
Nominal Diameter 2.8 mm
Tubing Insertion Depth 14.9 mm
Pneumatic Connection, Port 1 Male Thread R1/4
Pneumatic Connection, Port 2 For Tubing Outside Diameter of 4 mm
Thread Seal Type Coating
Mounting Position Any
Mounting Type External Hexagon, AF 14 mm
Operating Pressure - Entire Temperature Range -0.95 to 6 bar
Temperature-dependent Operating Pressure -0.95 to 14 bar, Subject to Temperature
Water Pressure Note Maximum 6 bar at Maximum 50°C
Operating Medium Compressed Air per ISO 8573-1:2010 [7:-:-]
Additional Operating Medium Water, Liquid and Ice-free
Lubricated Operation Possible
Ambient Temperature -10°C to +80°C
Corrosion Resistance Class CRC 1 - Low Corrosion Stress
LABS (PWIS) Conformity VDMA24364-B1/B2-L
Cleanroom Suitability Class 4 According to ISO 14644-1, Measured per ISO 14644-14
Product Weight 18 g
Release Ring Color Blue
Screwed Plug Material Nickel-plated Brass
Housing Material PBT
Release Ring Material POM
Tubing Seal Material NBR
Tubing Clamp Material High-alloy Stainless Steel
Materials Compliance RoHS-compliant
Manufacturer Pack Size 10 Pieces - Official Datasheet
Packaging Series 01-2025 - Actual Packaging Label
Country of Origin Made in Taiwan - Actual Packaging Label

Product Overview

The FESTO QSL-1/4-4, manufacturer part number 190659, is a pneumatic push-in L-fitting designed for connecting a 4 mm outside diameter pneumatic tube to an R1/4 male threaded pneumatic port. The fitting features a compact L-shaped elbow design using the manufacturer's push-pull connection principle. Its specified nominal diameter is 2.8 mm, with a tubing insertion depth of 14.9 mm. The threaded connection features a sealing coating, and the fitting can be installed using an AF 14 mm external hexagon. The manufacturer specifies an operating pressure range of -0.95 to 6 bar across the entire temperature range, with temperature-dependent ratings up to 14 bar under the applicable conditions. The ambient temperature range is -10°C to +80°C. Materials include a nickel-plated brass threaded plug, PBT housing, blue POM release ring, NBR tubing seal and high-alloy stainless-steel tubing retention component. The specified individual product weight is 18 g. The supplied actual photographs show black elbow fittings with blue release rings inside FESTO packaging marked QSL-1/4-4, material number 190659. Please confirm the required order quantity, compatible tube outside diameter and threaded connection before purchasing.

Key Product Features

  • FESTO QSL Push-in L-Fitting — Manufacturer model QSL-1/4-4, part number 190659.
  • R1/4 Male Thread Connection — Threaded connection with manufacturer-specified sealing coating.
  • 4mm Tube Outside Diameter — Pneumatic push-in connection with 14.9mm tubing insertion depth.
  • L-shaped Push-in Design — Compact elbow configuration with push-pull connection principle.
  • 2.8mm Nominal Diameter — Manufacturer-specified nominal flow passage size.
  • Pressure and Temperature Performance — Up to 6 bar across the entire specified temperature range, with temperature-dependent ratings up to 14 bar.
  • Industrial Material Construction — Nickel-plated brass, PBT, POM, NBR and stainless-steel components.

Actual Product Verification

✓ Actual push-in fitting photograph supplied
✓ Actual manufacturer packaging photograph supplied
✓ Packaging manufacturer: FESTO
✓ Packaging catalog number: QSL-1/4-4
✓ Packaging material number: 190659
✓ Packaging series marking: 01-2025
✓ Packaging description: Push-in L-fitting
✓ Visible fitting appearance: Black L-shaped Body
✓ Visible release ring color: Blue
✓ Visible threaded connections: Metal Male Threads
✓ Packaging country-of-origin marking: Made in Taiwan
✓ Manufacturer standard pack size: 10 Pieces
✓ Actual quantity inside the photographed package is not independently counted

In Stock & Available to Order

FESTO QSL-1/4-4 190659 is marked in stock based on the supplied inventory information. This pneumatic push-in L-fitting is offered for compressed-air tubing connections, industrial pneumatic equipment maintenance and exact-model replacement sourcing. The actual photographs show multiple elbow fittings inside packaging with the matching FESTO model and manufacturer part number. Please confirm the required sales quantity, R1/4 male thread, 4 mm pneumatic tube outside diameter, fitting installation conditions and whether supply is by individual piece or manufacturer's standard pack of ten before completing an order. The actual package quantity has not been independently verified.

IN STOCK

FESTO QSL-1/4-4 190659

Contact us for exact-model verification, order quantities and project sourcing. Please confirm the R1/4 male thread connection, 4mm tube outside diameter and required individual or multipack quantity before ordering.

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