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flexible keyway insert type, through bore
0.327in. ⁓21/64"
1.090in.
0.1880in.
0.2650in.
straight
unthreaded bore dep.:0.265" nom.; unthreaded bore dia.:0.1878" nom.; distance from bore centerline to body keying facility bottom/top:0.343" nom.; body keying facility dep/ht:0.067" nom.; body keying facility wd:0.1551" nom.; hole thread size designator:no. 6 - 40; positioning hole style:plain; threaded hole location:side of hub 90 deg. apart; threaded hole qty:2; securing method:threaded hole; keying facility and bore counterbore feature:not included; hub od:0.438" nom.; thread provision:unthreaded; flange thickness:0.145" nom.
steel corrosion resisting
A mechanical item used to connect a shaft and the mating member of a flexible or rigid coupling.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.