Part Number
Part Number:
NSN:
NIIN:
Item Name:
COUPLING , MAIN DRIVESHAFT
CAGE Information
| Code | Company |
|---|---|
| 97499 | BELL HELICOPTER TEXTRON INC. |
Federal Supply Class
Title
HELICOPTER ROTOR BLADES, DRIVE M
Inclusions:
INCLUDES HELICOPTER DYNAMIC COMPONENTS AND SPECIALLY DESIGNED PARTS THAT TRANSMIT POWER FROM THE AIRCRAFT POWER PLANT TO THE ROTARY WING AND ROTARY RUDDER. ALSO INCLUDED IN THIS CLASS ARE ROTORS; BLADES; ROTOR BLADE, TRIM, TABS; BLADE SETS; YOKES; CLUTCHES AND TRANSMISSIONS.
Exclusions:
EXCLUDES PROPELLERS (FSC 1610); ROTOR BRAKE SYSTEMS COMPONENTS (FSC 1630); ROTOR BLADE HYDRAULIC FOLDING SYSTEM COMPONENTS (FSC 1650); HYDRAULIC SERVO SYSTEM COMPONENTS (FSC 1650).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL,AMS6490 COMP M-50 PER BELL SPEC 299-947-087,CADMIUM-PLATED QQ-P-416 CLASS 2 TYPE 2,GEAR TEETH AND SPLINES CASEHARDENED,ROCKWELL HARDNESS RATING C SCALE 42 TO 46 BODY CORE HARDNESS,DIM.,2.223 IN. MIN,2.225 IN. O/A LG,6.500 IN. NOM LEFT FLANGE OD,0.080 IN. FLANGE TOP W,6.125 IN. NOM RIGHT FLANGE OD,0.162 IN. NOM RIGHT FLANGE W,5.730 IN. NOM OD W/SEVEN GROOVES 5.560 IN. DIA AND GROOVE SIDES AT 45.0 DEG ANGLE,RIGHT FACE GEAR DATA,60 TEETH,12 DIAMETRAL PITCH,20.0 DEG PRESSURE ANGLE,5.000 IN. PITCH DIA,4.883 IN. MIN,4.886 IN. MINOR DIA,5.1715 IN. MIN,5.1750 IN. MAX MAJOR DIA,ID INVOLUTE SPLINE DATA,4.883 IN. MIN,4.886 IN. MAX LINE DIA,1.224 IN. NOM SPLINE LG,16.21 DEG MINOR DIA,26.40 DEG MAJOR DIA,EIGHT EQUALLY SPACED THREADED HOLES 0.250-28 UNF CLASS 1B ON 6.000 IN. BOLT CIRCLE DIA ON LEFT FLANGE |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL,AMS6490 COMP M-50 PER BELL SPEC 299-947-087,CADMIUM-PLATED QQ-P-416 CLASS 2 TYPE 2,GEAR TEETH AND SPLINES CASEHARDENED,ROCKWELL HARDNESS RATING C SCALE 42 TO 46 BODY CORE HARDNESS,DIM.,2.223 IN. MIN,2.225 IN. O/A LG,6.500 IN. NOM LEFT FLANGE OD,0.080 IN. FLANGE TOP W,6.125 IN. NOM RIGHT FLANGE OD,0.162 IN. NOM RIGHT FLANGE W,5.730 IN. NOM OD W/SEVEN GROOVES 5.560 IN. DIA AND GROOVE SIDES AT 45.0 DEG ANGLE,RIGHT FACE GEAR DATA,60 TEETH,12 DIAMETRAL PITCH,20.0 DEG PRESSURE ANGLE,5.000 IN. PITCH DIA,4.883 IN. MIN,4.886 IN. MINOR DIA,5.1715 IN. MIN,5.1750 IN. MAX MAJOR DIA,ID INVOLUTE SPLINE DATA,4.883 IN. MIN,4.886 IN. MAX LINE DIA,1.224 IN. NOM SPLINE LG,16.21 DEG MINOR DIA,26.40 DEG MAJOR DIA,EIGHT EQUALLY SPACED THREADED HOLES 0.250-28 UNF CLASS 1B ON 6.000 IN. BOLT CIRCLE DIA ON LEFT FLANGE |