The list of architectural acronyms and abbreviations.

All architectural related acronyms and abbreviations.

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HV:

High Voltage(Architectural, Architecture, Construction)

I/O:

Input/Output(Computer engineering, Electronic hardware, Computer hardware)

LH:

Left Hand(Knitting, Architectural, Architecture)

LP:

Low Pressure(Petroleum, Oil exploration, Scuba diving)

Meter(Architectural, Architecture, Construction)

MSL:

Mean Sea Level(Geosciences, Geoscience, Earth Science)

MTBM:

Mean Time Between Maintenance(Maintenance, Logistics, Architectural)

Max:

Maximum(Mechanical sealing, Sealing, Math)

Min:

Minimum(Mechanical sealing, Sealing, Math)

N/A:

Not Applicable(Air Force, Online, Architectural)

NA:

Not Available(Architectural, IM, Email)

NC:

Normally Closed(Architectural, Architecture, Construction)

NO:

Normally Open(Architectural, Architecture, Construction)

NTC:

Negative Temperature Coefficient(Architectural, Architecture, Construction)

PA:

Public Address(Guitar amplifier, Amplifier, Guitar)

PN:

Part Number(Architectural, Architecture, Construction)

PTC:

Positive Temperature Coefficient(Architectural, Architecture, Construction)

Ref:

Reference(Morse code, Morse aids, Radio)

SEC:

Second(Architectural, Architecture, Construction)

SG:

Specific Gravity(Sealing, Mechanical sealing, Forest industry)

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APA	Smart Define. (2018). architectural. Retrieved September 29, 2026, from http://smartdefine.org/architectural/abbreviations/r/Aviation
Chicago	Smart Define. 2018. "architectural" http://smartdefine.org/architectural/abbreviations/r/Aviation (accessed September 29, 2026).
Harvard	Smart Define 2018, architectural, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/architectural/abbreviations/r/Aviation>.
MLA	Smart Define. "architectural" 18 January 2018. Web. 29 September 2026. <http://smartdefine.org/architectural/abbreviations/r/Aviation>

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