Strong's #5402: nesheq (pronounced neh'-shek)
 or nesheq {nay'-shek}; from 5401; military equipment, i.e. (collectively) arms (offensive or defensive), or (concretely) an arsenal:--armed men, armour(-y), battle, harness, weapon.
Brown-Driver-Briggs Hebrew Lexicon:
 ׁ / ׁ 
  nesheq / nêsheq 
 
 1) equipment, weapons, armoury
 
 1a) equipment, weapons
 1b) armoury
 
  Part of Speech: noun masculine
Relation: from H5401
Usage:
This word is used 10 times:
1 Kings 10:25: "and vessels of gold, and garments,  and armor, and spices, horses, and mules, a rate"
2 Kings 10:2: "and horses, a fenced city  also, and armor;"
2 Chronicles 9:24: "and vessels of gold, and raiment,  harness, and spices, horses, and mules, a rate"
Nehemiah 3:19: "piece over against the going up  to the armory at the turning"
Job 20:24: "He shall flee from the iron  weapon, and the bow of steel shall strike him through."
Job 39:21: "in his strength: he goeth on to meet  the armed men."
Psalms 140:7: "thou hast covered my head in the day  of battle."
Isaiah 22:8: "in that day to  the armor of the house of the forest."
Ezekiel 39:9: "shall go forth, and shall set on fire and burn  the weapons, both the shields and the bucklers, the bows and the arrows,"
Ezekiel 39:10: "the forests; for they shall burn  the weapons with fire: and they shall spoil those that spoiled"