NSN 3020-00-098-1781

Part Details | GROOVE PULLEY

3020-00-098-1781 A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see BLOCK, TACKLE. For items specifically designed for aviation, see PULLEY(1), GROOVE, AVIATION.

Alternate Parts: 321250, 321250, 3020-00-098-1781, 00-098-1781, 3020000981781, 000981781

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30JAN 01, 196300-098-178108109 ( PULLEY, GROOVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 3020-00-098-1781
Part Number Cage Code Manufacturer
3212503G892ELECTRO MACHINE AND TOOL CO
32125073030HAMILTON SUNDSTRAND CORPORATION
Technical Data | NSN 3020-00-098-1781
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OUTSIDE DIAMETER4.375 INCHES NOMINAL
FACE WIDTH0.225 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
DESIGN FORM PLAIN
LIGHTENING HOLE NOT INCLUDED
INTEGRAL COOLING VANE NOT INCLUDED
GROOVE SHAPE V
GROOVE QUANTITY1
GROOVE DEPTH0.187 INCHES NOMINAL
V GROOVE ANGLE IN DEG30.0
BORE FEATURE INCLUDED
BEARINGS NOT INCLUDED
BORE TYPE INVOLUTE SPLINE
SPLINE QUANTITY12
SPLINE PRESSURE ANGLE IN DEG30.0
SPLINE PITCH DIAMETER0.6000 INCHES NOMINAL
SPLINE MAJOR DIAMETER0.682 INCHES NOMINAL
SPLINE MINOR DIAMETER0.560 INCHES MINIMUM AND 0.563 INCHES MAXIMUM
SPLINE LENGTH0.223 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
SPLIT HUB FEATURE NOT INCLUDED
SECURING METHOD DRILLED HOLE
SECURING HOLE QUANTITY18
HOLE LOCATIONHOLES EQUALLY SPACED,1ST HOLE IN LINE W/CENTERLINE THRU SPLINE GROOVES WITHIN 0.030
BOLT CIRCLE DIAMETER2.500 INCHES NOMINAL
DRILLED HOLE DIAMETER0.191 INCHES MINIMUM AND 0.194 INCHES MAXIMUM
SPECIAL FEATURESSECURING HOLESCOUNTERBORED 0.312 IN. DIABY .037/.077 IN. DEEP,ONERECTANGULAR NOTCH LOCATED IN OUTER EDGE,BASE OF NOTCH 1.530/1.540 IN. FROM CENTER,0.498/0.501 IN. W