CS518A286SP

Imperial Structural Standard Crownserts

CS Series / Standard Type / A286SP / Structural

Installed using the Crownserts Hand-Installation Tool: CST518

CS518A286SP is an imperial structural standard crownsert in A286 alloy with silver plating for demanding service, designed to strengthen 5/16-18 UNC threads in lightweight parent materials. It uses 3/8-24 UNF external threads and CST518 installation tooling.

Crownserts can offer you the part CS518A286SP with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CS518A286SP - Imperial Structural Standard Crownserts

CS518A286SP - Imperial Structural Standard Crownserts

CS518A286SP - Imperial Structural Standard Crownserts

How to install a Crownsert?

A internal thread (Class 3B) 5/16-18 UNC

B external thread (Class 3A) 3/8-24 UNF

Ø max minor special .3405

Ø C (+.008/-.002) .314

D (+.015/-.000) .110

F .310

G (±.010) .470

J (±1) 29

Through-hole preparation Min. full THD depth .693; Min. full depth .505

Blind-hole preparation Min. full THD depth .693; Min. full depth .505

CS518A286SP schematic

Material A286 per AMS5731 or AMS 5734

Finish PASSIVATED per AMS 2700 & Silver Plated per AMS 2411 (.0002 min. thickness)

Temperature range -400°/+1200°F

Heat treat RC 32-40

Magnetic NO

Hand-installation tool part number CST518

Step drill part number CSD0343

Tap through tool part number TTI0375

Blind tap tool part number TBI0375

Removal tool part number CSRT518

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Crownserts is offering part CS518A286SP as factory new.

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