5310-00-043-1865 NUT,SELF-LOCKING,EXTENDED WASHER Index 9320-00-043-1872 RUBBER SHEET,CELLULAR

National Stock Number:
5310-00-043-1869

Federal Supply Class:
5310

National Item Identification Number:
000431869

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
S6155-63041-00678286SIKORSKY AIRCRAFT CORPORATION
S6155-63041-678286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM
OVERALL DIAMETER0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-362 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
PERIPHERAL SHAPE STYLEROUND W/FLATS
WIDTH ACROSS FLATS0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM
THICKNESS0.033 INCHES NOMINAL


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