5310-01-017-2584 NUT,PLAIN,ROUND Index 5310-01-017-2587 WASHER,LOCK

National Stock Number:
5310-01-017-2586

Federal Supply Class:
5310

National Item Identification Number:
010172586

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:
CB57-42116PC1097384TEXTRON SYSTEMS CORPORATION
CB57-42547-197384TEXTRON SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING35.0 DUROMETER MINIMUM AND 45.0 DUROMETER MAXIMUM
HOLE DIAMETER0.312 INCHES NOMINAL
OVERALL DIAMETER0.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-417 GRADE SB410ACFF MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
MINIMUM TENSILE STRENGTH1000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.047 INCHES MINIMUM AND 0.077 INCHES MAXIMUM


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