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18.0000in. ⁓18-1/64"
29.125in. ⁓29-1/8"
32.000in. ⁓32-1/64"
propulsion shaft on board 378 ft whec coast guard vessels
tapered first end
unthreaded hole
1
keyway
18.0000in. first end
steel
taper length: 16.000 in. ; distance from center of bore to bottom of keyway: 10.515 in. ; flange width: 10.937 in. ; furnished items: 20 capscrews; taper per foot: 0.125 in. ; hub diameter: 25.000 in. ; 4 keying facilities provided; keying facility spacing in degrees: 90.0; keying facility width: 1.515 in.
plain flange
A device for connecting the ends of two shafts to produce in effect, one piece of rigid shafting so that the rotary motion of one shaft is transmitted to the other shaft. Couplings of the sleeve type must have an over-all length exceeding the outside diameter, or must have an internal spline.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
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.