MATERIAL: Non magnetic, heat and corrosion resistant steel. A 286 per AMS5525, AMS5731, AMS5732 or AMS5737.

FINISH: Silver plated in accordance with AMS 2410.

THREADS: AS8879 before lubrification.

CLASSIFICATION: 450° F.

MARKING:

• SD + C.
• Optional location and no identification is required on .1640 size and smaller.

PROCUREMENT SPECIFICATION: BPS-N-70, except tensile strength, class 125TC4.

BEARING SURFACE: Shall be square with pitch diameter within X when measured in accordance with BPS-N-70.

Contact Howmet for the diameter/type in manufacturing