1290-00-692-1493 LEVEL,FIRE CONTROL INSTRUMENT Index 1290-00-692-1496 SPRING

National Stock Number:
5365-00-692-1494

Federal Supply Class:
5365

National Item Identification Number:
006921494

Description:
SHIM

Detail:
A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use DISK, SOLID, PLAIN. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see SPACER, PLATE; WASHER, FLAT and SPACER, RING. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also SHIM STOCK, LAMINATED; SHIM STOCK ASSORTMENT, GASKET; and BEARING, WASHER, THRUST.


Manufacturer Information:
820224219200US ARMY ARDEC RDECOM


Techincal Specification:
APERTURE DIAMETER4.281 INCHES NOMINAL
BOLT HOLE QUANTITY5
CONSTRUCTIONLAMINATED
FEATURES PROVIDEDSEPARABLE
FSC APPLICATION DATAMOUNT,TELESCOPE,FIRE CONTROL INDICATING AND DESIGNATING EQUIPMENT
HOLE DIAMETER0.406 INCHES NOMINAL
LAMINATION THICKNESS0.002 INCHES NOMINAL
OUTSIDE DIAMETER6.500 INCHES NOMINAL
MATERIALCOPPER ALLOY


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