CS821A286

Imperial Structural Standard Crownserts

CS Series / Standard Type / A286 / Structural

Installed using the Crownserts Hand-Installation Tool:  CST820

CS821A286 CS Series is a standard imperial Crownserts® threaded insert for durable thread reinforcement. A286 high-temperature alloy; specified with 1/2-20 UNF internal thread and 9/16-24 UNEF installation thread.

Crownserts can offer you the part CS821A286 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CS821A286 - Imperial Structural Standard Crownserts
CS821A286 - Imperial Structural Standard Crownserts
CS821A286 - Imperial Structural Standard Crownserts
CS821A286 - Imperial Structural Standard Crownserts
 How to install a Crownsert?
CS821A286 - Imperial Structural Standard Crownserts
CS821A286 - Imperial Structural Standard Crownserts
CS821A286 - Imperial Structural Standard Crownserts

Thread & Dimensions

A internal thread (Class 3B) 1/2-20 UNF
B external thread (Class 3A) 9/16-24 UNEF
Ø max minor special .5290
Ø C (+.008/-.002) .505
D (+.015/-.000) .135
F .490
G (±.010) .750
J (±1) 44
Through-hole preparation Min. full THD depth .973; Min. full depth .785
Blind-hole preparation Min. full THD depth .889; Min. full depth .785
CS821A286 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

Step drill part number CSD0531
Tap through tool part number TTI0562
Blind tap tool part number TBI0562
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Crownserts is offering part CS821A286 as factory new.