ABBREVIATIONS
Assy ..........................................Assembly
A/R ............................................ As Required
B ................................................Bolt
Brg .............................................Bearing
BSN ........................................... Before Serial Number
Btm ............................................Bottom
C-Bolt ........................................Carriage Bolt
Cttr.............................................Cotter
CV .............................................Constant Velocity
Deg ............................................Degree
Dia .............................................Diameter
ea ..............................................Each
eq or Equiv .................................Equivalent
Fln .............................................Flanged Lock Nut
Fw .............................................. Flat Washer
Ga ..............................................Gauge
Gr or Grd ....................................Grade
Hd ..............................................Head
Hyd ............................................Hydraulic
ID ............................................... Inside Diameter
Ill or Illus .................................... Illustration
Ind .............................................. Indicator
Kw .............................................Keyway
LH ..............................................Left Hand
Ln ..............................................Lock Nut
Lw .............................................. Lock Washer
Mtg Hrd ...................................... Mounting Hardware
NC .............................................National Coarse
NF .............................................. National Fine
NPT ...........................................National Pipe Thread
OD .............................................Outside Diameter
Pc(s) .......................................... Piece(s)
PD .............................................Pitch Diameter
PTO ...........................................Power Takeoff (shaft)
Q or Qty ..................................... Quantity
Reg Mach ..................................Regular Machine
RH .............................................Right Hand
SN .............................................Serial Number
Spk, or Spkt or Sprkt ................. Sprocket
Sq .............................................. Square
SS ............................................. Stainless Steel
SSB ........................................... Stainless Steel Bolt
St ............................................... Straight
Std .............................................Standard
STS ...........................................Self Tapping Screw
UASN ........................................ Used After Serial Number
UBSN ........................................ Used Before Serial Number
W...............................................With
W/O ........................................... With Out
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