Part Number
Part Number:
NSN:
NIIN:
Item Name:
LOCK , MAIN ROTOR
CAGE Information
| Code | Company |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 MIL-S-6758 COMP 4130,CADMIUM-PLATED QQ-P-416,DIM.,SHAPE 72.0 DEG SPLINED SEGMENT W/THREE MOUNTING HOLES,10.920 IN. FLANGE OD,0.253 IN. NOM FLANGE THK,2.003 IN. NOM O/A HT,8.738 IN. MIN,8.742 IN. MAX BODY OD,7.850 IN. MIN,7.855 IN. MAX BODY ID,INTERNAL INVOLUTE SPLINE DATA,159 TEETH 0.750 IN. LG LOCATED 1.250 IN. FROM TOP OF LOCK,14.5 DEG PRESSURE ANGLE,7.950 IN. PITCH DIA,7.835 IN. MIN,7.850 IN. MAX MINOR DIA,8.100 IN. NOM MAJOR DIA,20 DIAMETRAL PITCH,THREE HOLES 0.298 IN. DIA DRILLED THRU FLANGE ON 10.375 IN. DIA BOLT CIRCLE |