THREAD: MIL-S-8879 Class-3B

1. MATERIAL:
• Insert And Lockring: Cres, A286 per AMS5731, AMS5734 or AMS5737.
2. HEAT TREAT:
• Insert: 140 KSI UTS min.
• Lockring: 34-40 HRC.
3. FINISH:
• Insert And Lockring: Passivate per AMS2700, Type 2.