This standard provides technical requirements for installing and retaining plain, self-lubricating bearings in structural housings. It is widely used across the aerospace and defense industries to ensure that bearings remain secure under high-load conditions.
: Outlines the Proof Load Testing procedures required to verify that the bearing is securely retained and can withstand specified axial loads without moving. nas0331 pdf
These fasteners are commonly found in jet engine assemblies, airframe primary structures, and missile systems where temperatures exceed the limits of standard stainless steel. airframe primary structures