physical technological component
fundamental physical component of a machine or a tool, part of the machinery and contributing to the function of the machine, not of the esthetics
spare part
interchangeable part that is kept in an inventory and used for the repair or replacement of failed units
Keystone module
type of data connector mounted in walls and patch panels
brake shoe
vehicle part
gun barrel
firearm component which guides the projectile during acceleration
sleeve
pipe or cable connector
coulter
vertically mounted component of plow
exhaust port
engine technology
Film master
screen printing master
hull
watertight body of a ship or boat
Point lock
device which locks a set of points in position
connecting rod
mechanical element that connect the piston to the crank or crankshaft
overflow structure
component in a relief structure designed for diverting water, such as in a sewage treatment plant
firebox
part of a steam engine
muzzle brake
muzzle device designed to counter recoil while firing by diverting gases
stock
structural component of a long gun
cutting part
cutting part of a cutting tool that contains a cutting edge
bezel
ring that surrounds and frames the crystal on a watch face
waveguide
structure that guides waves, typically electromagnetic waves
knob
handle protruding from a surface
orphaned technology
computer products, programs, and platforms that have been abandoned by their developers
bicycle tire
a tire that fits on the wheel of a bicycle
car wheel
part of a car propulsion system
car wheel
part of a car propulsion system
boom
in sailing, a spar along the bottom edge of a fore and aft rigged sail
shell plating
outer-most structure on the hull of a ship or boat
plowshare
blade of a plow, used for turning earth
running gear
locomotive component
governor
device used to measure and regulate the speed of a machine
bow limbs
part of a bow or crossbow
former
tool to help in hull/fuselage/chassis construction by imposing a certain profile or form
construction brick
small plastic toy with interlocking studs that can be assembled
tire
ring-shaped covering that fits around a wheel's rim
fireplace
device for firing solid fuels in residential buildings
buffer
part of the coupling system used in some railway systems for attaching railway vehicles to one another
cylinder block
part of an internal combustion engine
drainage channel
component for linear drainage of surfaces
Crossbow nut
A part of the triggering mechanism of some types of crossbows
propelling nozzle
nozzle that converts the internal energy of a working gas into propulsive force
thimble
protection for rope loop, often made of metal, that distributes the load across the entire loop
safety
feature on firearms used to prevent accidental discharge
sensor
device that measures a physical quantity and converts it into a signal
track switch
mechanical installation providing a branching of a track (railway track or other uncommon type of track)