5340-00-470-4421 SEAT,HELICAL COMPRESSION SPRING Index 5330-00-470-4425 SEAL,PLAIN ENCASED

National Stock Number:
5365-00-470-4423

Federal Supply Class:
5365

National Item Identification Number:
004704423

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:
SS52B0203X043778286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
APERTURE DIAMETER0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM
CONSTRUCTIONLAMINATED
FEATURES PROVIDEDSEPARABLE
LAMINATION QUANTITY20 AND 1
LAMINATION THICKNESS0.003 INCHES NOMINAL AND 0.032 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1,TEMPER H19 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/8,TEMPER H19 OR H39 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-250/5,TEMPER T3,T4,T81 OR T861 FED SPEC 3RD MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 2024
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
OVERALL THICKNESS0.090 INCHES NOMINAL
STYLE DESIGNATORCIRCULAR


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