CSH820A286

Imperial Structural Heavy-Duty Standard Crownserts

CSH Series / Standard Type / A286 / Structural Heavy-Duty

Installed using the Crownserts Hand-Installation Tool:  CST820

CSH820A286 is an imperial structural heavy-duty standard crownsert in A286 high-temperature alloy, designed to strengthen 1/2-20 UNF threads in lightweight parent materials. It uses 5/8-18UNF external threads and CST820 installation tooling.

Crownserts can offer you the part CSH820A286 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
 How to install a Crownsert?
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts
CSH820A286 - Imperial Structural Heavy-Duty Standard Crownserts

Thread & Dimensions

A internal thread (Class 3B) 1/2-20 UNF
B external thread (Class 3A) 5/8-18UNF
Ø max minor special .5618
Ø C (+.008/-.002) .528
D (+.015/-.000) .135
F ref .490
G (±.010) .750
Through-hole preparation Min. full THD depth 1.035; Min. full depth 0,785
Blind-hole preparation Min. full THD depth .924; Min. full depth 0,785
CSH820A286 schematic

Material & Finish

Material A286 per AMS5731 or AMS 5734
Finish PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type 1
Temperature range -400°/+650°F
Heat treat RC 32-40
Magnetic NO

Tooling & Preparation

Hand-installation tool part number CST820
Step drill part number CSD0578
Tap through tool part number TTI0625
Blind tap tool part number TBI0625
Removal tool part number CSHRT820
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Crownserts is offering part CSH820A286 as factory new.