Specification for Stiffnuts (Unified threads) for aircraft Ingestion-build-177197 The responsibility for carrying out

The responsibility for carrying out the activities required by BS EN ISO 14937 will vary from case to case

BS 6387:1994

By determining the resistance of coarse aggregate

and for the safety provisions and devices necessary to ensure that pressurization is established and maintained for type of protection pressurization "pD"

Specification for Stiffnuts (Unified threads) for aircraft Ingestion-build-177197 The responsibility for carrying out1 Scope 1. 1 These British Standards cover the dimensions, material, finish, testing and identification of aircraft stiffnuts with Unified threads. According to the materials used in their construction, the stiffnuts are classified as satisfactory for use at sustained temperatures within the following ranges: a) 75 C to + 425 C: corrosion resisting steel nuts, silver plated or unplated b) 75 C to + 200 C: steel and corrosion resisting steel nuts,