This document covers all metal, castellated, self-locking nuts made from alloy steel of the types identified under the Unified Numbering System as UNS G41300 and UNS G43400.
Where self-locking nuts with UNJ 16 pitch thread form are required for use with standard MIL-S-8879 external threads.
Where self-locking nuts with UNJ 16 pitch thread form are required for use with standard MIL-S-8879 external threads.
SAE AS4958 History
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