3K-0360 STOR O-ring for CAT engine spare part

3K-0360 STOR O-ring for CAT engine spare part Featured Image
  • 3K-0360 STOR O-ring for CAT engine spare part

Short Description:

NBR STOR O-ring for Caterpillar straight thread fittings, inner diameter 16.36 mm, cross-section 2.21 mm, static seal for hydraulic, coolant and fuel connectors, prevents leakage and contamination.

Product Detail

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description

This STOR straight thread O-ring is made of 90A NBR nitrile rubber for SAE straight thread fittings. It fills groove gap by elastic compression, compatible with mineral hydraulic oil, glycol coolant and hydrocarbon fuel, with good extrusion resistance and low compression set. Nicks, hardening, cracks and extrusion deformation will cause connector leakage and pressure drop, contaminants will damage pumps, valves and plungers.

Part No.:3K-0360
Type: STOR straight thread O-ring seal
Material: NBR nitrile rubber, Shore A90
Inner Diameter:16.36 mm
Cross-section Diameter:2.21 mm
Color: Black
Sealing Type: Static seal, dedicated for STOR straight thread fitting
Compatible Medium: Hydraulic oil, glycol coolant, diesel, mineral lubricant
Not for: Brake fluid, ketone, phosphate ester fluid, strong UV and ozone environment
Working Condition: Medium pressure and normal temperature for hydraulic, cooling and fuel lines
Matching System: Hydraulic fitting, cooling circuit, fuel pipeline assembly

Application Scenarios

Fits Caterpillar 3512, 3516 series engines, 725,730,735,740 articulated dump truck, D250D/D250E, for overhaul of hydraulic STOR fitting, thermostat base, fuel line and radiator connector.

FAQ 

Q：Can regular O-ring of same size replace this STOR O-ring?
A：Not recommended. STOR fitting requires precise compression and hardness, generic O-ring tends to leak.

Q：Can slightly stretched O-ring seal well after installation?
A：Not recommended. Reduced cross-section leads to insufficient compression and slow leakage under pressure fluctuation.

Q：Will new O-ring stop cutting damage if thread has burrs?
A：No. Burrs cut the seal during assembly, polish or replace the fitting first.

Q：Can this NBR O-ring work with phosphate ester fire-resistant oil?
A：No. NBR is incompatible with phosphate ester fluid and will swell rapidly.

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