5305-12-319-2339

1560-00-574-0648 1560005740648 005740648 is a principal chordwise rib that gives cross-sectional shape, strength and rigidity to a portion of a wing, stabilizer, and the like. see also rib (1), stiffener, aircraft

8145-12-381-2107 8145123812107 123812107 is a shipping and storage container for the accommodation of one or more optical equipments.

5310-99-412-0610 5310994120610 994120610 is a nut, round in shape, having all or part of its outer surface knurled. it may have provisions for external wrenching. for items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. see also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

2540-99-961-4359 2540999614359 999614359 is a protective covering specially designed to be mounted on an aircraft, ground vehicle or fire control equipment. it protects the aircraft, ground vehicle or their occupants, or fire control equipment from small arms or anti-aircraft fire, or exploding-mine fragments. it may be made from metallic or nonmetallic material, either in sections or in one piece. it may have integral fittings for installation. excludes armor plate and body armor, fragmentation protective and cloth (1), ballistic.