1680-01-154-1788 SEAT,AIRCRAFT EJECTION Index 5365-01-154-1790 SHIM

National Stock Number:
5365-01-154-1789

Federal Supply Class:
5365

National Item Identification Number:
011541789

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:
65124-11311-10178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
APERTURE DIAMETER42.140 INCHES NOMINAL
BOLT CIRCLE DIAMETER43.000 INCHES NOMINAL
BOLT HOLE QUANTITY60
HOLE DIAMETER0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM
OUTSIDE DIAMETER43.800 INCHES NOMINAL
MATERIALALUMINUM ALLOY
STYLE DESIGNATORCIRCULAR


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