CSH1216A286

Imperial Large Heavy-Duty Crownserts

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

Installed using the Crownserts Hand-Installation Tool:  CSHT1216

CSH1216A286 reinforces or repairs 3/4-16 UNF imperial threads in aluminium, magnesium or other non-ferrous materials. A286 high-temperature alloy, with .891 57/64 tap-hole guidance and CSHT1216 hand installation tooling.

Crownserts can offer you the part CSH1216A286 with Certificate of Quality, Certificate of Conformity and Certificate of Origin on request.

CSH1216A286 - Imperial Large Heavy-Duty Crownserts
CSH1216A286 - Imperial Large Heavy-Duty Crownserts
CSH1216A286 - Imperial Large Heavy-Duty Crownserts
CSH1216A286 - Imperial Large Heavy-Duty Crownserts
 How to install a Crownsert?
CSH1216A286 - Imperial Large Heavy-Duty Crownserts
CSH1216A286 - Imperial Large Heavy-Duty Crownserts
CSH1216A286 - Imperial Large Heavy-Duty Crownserts

Thread & Dimensions

A internal thread (Class 3B) 3/4-16 UNF
B external thread (Class 3A) 15/16-20 UNJEF
Ø max minor special .8797
Ø C (+.008/-.002) .838
D (+.015/-.000) .170
F ref .750
G (±.010) 1.125
Through-hole preparation Min. full depth 1,160
Blind-hole preparation Min. full depth 1,160
CSH1216A286 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 CSHT1216
Step drill part number CSD0891
Tap through tool part number TTI0938
Blind tap tool part number TBI0938
Removal tool part number CSHRT1216
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Crownserts is offering part CSH1216A286 as factory new.