5310-00-291-9421 WASHER,FLAT Index 5330-00-291-9426 GASKET

National Stock Number:
5310-00-291-9424

Federal Supply Class:
5310

National Item Identification Number:
002919424

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:
10-0059052659ROCKWOOD SYSTEMS CORP
S59003670TYCO FIRE PRODUCTS LP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING60.0 DUROMETER MINIMUM AND 65.0 DUROMETER MAXIMUM
HOLE DIAMETER1.031 INCHES NOMINAL
MATERIALRUBBER SYNTHETIC OVERALL
OVERALL DIAMETER1.375 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.094 INCHES NOMINAL


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