TM 9-4520-251-14
G
GASKET - A seal or packing used between matched machine parts or around pipe joints to prevent the es-
cape of gas or fluid.
GOGGLES – A device used to protect the eyes from dust, dirt, flying chips, etc.
H
HONING – Sharpening or finishing with a fine–grained whetstone, Honing is similar to lapping but differs in its
use of a whetstone rather than metal lap. (See LAPPING.)
I
IMPAIRMENT – A state of diminished strength, value, or quality; poor health.
INITIAL – The first or starting condition.
INTERMITTENT – Stopping and starting at intervals.
L
LAPPING -The finishing of spindles, bored holes, etc., to fine limits by the use of a lap. A lap is a tool with a true
surface, usually of a metal softer than the workpiece material, and capable of holding the abrasive medium
used in the lapping process.
LOBE – A rounded projection of a part
M
MALFUNCTION – Occurs when a unit fails to operate normally.
MANUALLY – By hand; employing human rather than mechanical energy.
MANUFACTURER – The company which makes an item or piece of equipment for sale.
MATERIEL – Equipment, apparatus, and supplies of an organization such as an army.
O
OBSTRUCTION – An obstacle.
P
PINCH POINT – A spot or place where moving equipment may come into close contact with another object
and trap, crush, or pinch anything in its way. Personnel should stand clear of possible pinch points prior to
startup of equipment.
PIVOT – A short rod or shaft about which a related part rotates; the act of turning on or as if on a pivot.
PRIME – The act of introducing a liquid into a pump to increase the pump’s ability to overcome negative head
pressure.
PRIME MOVER – Major motive force. A gasoline engine is the prime mover for the heater
R
RECOMMENDATIONS – Suggestions for change; advice given usually to make an improvement.
REQUIRE – To demand or need.
Glossary-3
