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National Stock Number:
5365-00-686-0791
Federal Supply Class:
5365
National Item Identification Number:
006860791
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.
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Manufacturer Information:
| SS52A0265X0500 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| APERTURE DIAMETER | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | CONSTRUCTION | LAMINATED | | FEATURES PROVIDED | SEPARABLE | | LAMINATION QUANTITY | 29 AND 1 | | LAMINATION THICKNESS | 0.003 INCHES NOMINAL AND 0.032 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM | | OVERALL THICKNESS | 0.120 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-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 53,T4,T81 OR T861 FED SPEC 3RD MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 2024 | | SPECIAL FEATURES | ALUMINUM ALLOY WASHERS OR SHIMS SHOULD NOT BE USED IN SEVERE LOADING CONDITIONS | | SPECIFICATION/STANDARD DATA | 78286-SS52 MANUFACTURERS SPECIFICATION | | STYLE DESIGNATOR | CIRCULAR |
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