HB 4-56-1987
Round section rubber ring sealing structure (English Version)

Standard No.

HB 4-56-1987

Language

Chinese, Available in English version

Release Date

1987

Published By

Professional Standard - Aviation

Latest

HB 4-56-1987

Replace

HB 4-56-1976

Scope

B 4-56～57-87 Standard name: Circular cross-section rubber ring sealing structure. This standard is suitable for sealing of hydraulic, pneumatic, fuel and lubrication systems.

HB 4-56-1987 history

• 1987 HB 4-56-1987 Round section rubber ring sealing structure
• 1976 HB 4-56-1976 Round section rubber ring sealing structure