M1A3 Gunner’s Quadrant

by | Sep 14, 2023

NSN: 1290-01-610-3964 P/N: 13042173   General Description: The M1A3 Gunner’s Quadrant is a portable precision leveling instrument used for laying artillery weapons in elevation, measuring their angles of elevation, and checking the elevation mechanisms of fire...

Azimuth Test Fixture

by | Apr 17, 2023

NSN: 4931-00-769-1596 P/N: 7691596 General Description The Azimuth Test Fixture is designed for checking the azimuth accuracy of various fire control instruments to include backlash error, level travel, and counter/scale accuracy. Some of these instruments include:...

Cross Leveling and Elevation Fixture

by | Apr 17, 2023

NSN: 6650-00-652-3553 P/N: 6523553 General Description The Cross Leveling and Elevation Test Fixture is designed for checking the accuracy of elevation mechanisms, angle-of-sight mechanisms, and the setting of level vials that are typically found on various fire...

M1A1 Gunner’s Quadrant

by | Jan 19, 2023

NSN: 1290-00-891-9999 P/N: 7197156 General Description: The M1A1 Gunner’s Quadrant is a portable precision leveling instrument used for laying artillery weapons in elevation, measuring their angles of elevation, and checking the elevation mechanisms of fire control...

Collimating Telescope

by | Jan 17, 2023

Collimating Telescope: Details NSN: 4931-00-554-9108 P/N: 5549108 General Description The Collimating Telescope is used to check other instruments to ensure that the axis of their optical elements is properly aligned with their mechanical axis to focus eyepieces and...