9900-04 BSPP Bonded Seal Buna-N | 1/4 BSPP Hydraulic Seal

Product Description

The 9900-04 Bonded Seal Buna-N is designed to provide dependable sealing for 1/4 BSPP male fittings used in hydraulic ports and blocks. Since BSPP threads are parallel and do not seal on the threads, this bonded seal ensures pressure retention through face sealing.

Specifications

• Material: Carbon Steel
• O-Ring Material: Buna-N
• Seal Nominal Size: 04
• BSPP Size: 1/4-19

Standards & Compliance

• Designed for BSPP parallel threads
• Compatible with BSPP hydraulic fittings

Features

• High-pressure face sealing
• Oil and fuel resistant Buna-N
• Prevents leakage in BSPP ports
• No thread sealant required

Applications

• BSPP hydraulic adapters
• BSPP port sealing
• Manifolds and valve blocks

The carbon steel ring prevents deformation, while the Buna-N sealing element delivers resistance to oils, fuels, and water. This seal is widely used in general-purpose hydraulic systems and international equipment.