Dewalt 149883 O-ring 0.299x0.103 Inch Nbr Seal

Product Description

The DEWALT 149883 is an NBR (nitrile butadiene rubber) O-ring used as a sealing component in DEWALT power tools and accessories. Measuring 0.299 inches in inner diameter and 0.103 inches in cross-section, this small-format seal is designed to maintain pressure integrity and prevent fluid or air leakage at component interfaces. NBR compound provides solid resistance to oils, fuels, and general hydraulic fluids, making it well suited for pneumatic and mechanical tool applications. Licensed trades and repair technicians sourcing OEM-grade replacement seals will find this part a direct fit for applicable DEWALT equipment.

This O-ring is intended for use during service and repair of DEWALT power tools and related accessories where the original seal has worn, cracked, or lost elasticity. Typical install scenarios include compressor valve assemblies, pneumatic nailer internals, and other pressurized component housings that rely on precision elastomeric seals to maintain performance. Always verify the inner diameter and cross-section dimensions against the original part before installation.

Key Features

• NBR (nitrile butadiene rubber) compound resists oil, fuel, and pneumatic fluid exposure
• Inner diameter of 0.299 inches with a 0.103-inch cross-section for precise fitment
• OEM DEWALT replacement part — direct substitution for worn or damaged original seals
• Compact profile suitable for tight internal component housings
• Maintains pressure seal integrity in pneumatic and mechanical assemblies

Compatibility

Designed as an OEM-style replacement O-ring for DEWALT power tools and accessories requiring a 0.299 x 0.103 inch NBR seal. Verify fitment against the original part number and equipment service documentation before ordering.

Installation Notes

Installation should be performed by a qualified technician familiar with DEWALT tool service procedures. Depressurize and disconnect the tool from all power and air supply sources before disassembly. Lubricate the O-ring with a compatible grease or oil during installation to prevent tearing and ensure proper seating. Do not overstretch the seal during installation, as deformation will compromise the pressure boundary.

Technical Specifications

• Material: NBR (Nitrile Butadiene Rubber)
• Inner Diameter: 0.299 inches
• Cross-Section: 0.103 inches

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: 149883