8
Mk 5 Pan & Tilt Head Maintenance Manual
Abbreviations
The following abbreviations are used in this publication:
ac............................................... alternating current
A .................................................................Ampere
AF......................................................... across flats
A/R ....................................................... as required
ASME .......... American Society of Mech Engineers
assy ......................................................... assembly
BS.................................................. British Standard
BA...................................British Association thread
BSF ............................British Standard Fine thread
BSP ...............British Standard Parallel Pipe thread
BSW ..................British Standard Whitworth thread
btn ................................................................ button
chs...............................................................cheese
C of G .......................................... Centre of Gravity
comp...................................................compression
csk .......................................................countersunk
cu....................................................................cubic
c/w .................................................... complete with
dc....................................................... direct current
dia............................................................. diameter
ft ....................................................................... foot
hd ................................................................... head
hex............................................................ hexagon
Hz ............................................... Hertz (frequency)
IC..................................................integrated circuit
ID....................................................inside diameter
in.......................................................................inch
kg...............................................................kilogram
lb..................................................... pound (weight)
lbf-in............................................. pound force inch
LF ............................................. Lubricated Friction
LH ............................................................. left hand
MISO ................................................. metric thread
m....................................................................metre
mm...........................................................millimetre
N .................................................................Newton
NPT ....................................... National Pipe thread
NI .......................................................not illustrated
No. ..............................................................number
OD ................................................outside diameter
PCB ........................................ printed circuit board
PCD ........................................ pitch circle diameter
pozi ............................................................ Pozidriv
psi ..................................... pounds per square inch
pt..................................................................... point
PTFE ................................. Polytetrafluoroethylene
PVC ............................................ Polyvinyl chloride
RH .......................................................... right hand
sect ..............................................................section
skt ................................................................socket
SWG .......................................standard wire gauge
thk....................................................................thick
UNC..................................... Unified Coarse thread
UNF ..........................................Unified Fine thread
V ....................................................................... Volt
W .....................................................................Watt