
PARTS LIST ABBREVIATIONS
BHB
binding head brass
inf
infernal
BHS
binding head steel
ig
length or long
cap.
capacitor
met.
metal
cer
comp
conn
CRT
csk
DE
dia
ceramic
composition
connector
cathode-ray tube
countersunk
double end
diameter
mtg hdw
OD
OHB
OHS
P/O
PHB
PHS
piste
mounting hardware
outside diameter
oval head brass
oval head steel
part of
pan head brass
pan head steel
plastic
div
division
PMC
paper, metal cased
elect.
electrolytic
poly
polystyrene
EMC
electrolytic, metal cased
prec
precision
EMT
electrolytic, metal tubular
PT
paper, tubular
ext
external
PTM
paper or plastic, tubular, molded
F & 1
focus and intensity
RHB
round head brass
FHB
flat head brass
RHS
round head steel
FHS
flat head steel
SE
single end
Fil HB
fillister head brass
SN or S /N
serial number
Fit H5
fillister head steel
S or SW
switch
h
height or high
TC
temperature compensated
hex.
hexagonal
THB
truss head brass
HHB
hex head brass
thk
thick
HHS
hex head steel
THS
truss head steel
HSB
hex socket brass
tub.
tubular
HSS
hex socket steel
var
variable
ID
inside diameter
w
wide or width
inc
incandescent
WW
wire-wound