5310-01-026-4383 WASHER,FLAT Index 5310-01-026-4385 WASHER,FINISHING

National Stock Number:
5310-01-026-4384

Federal Supply Class:
5310

National Item Identification Number:
010264384

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:
5612-1-1086928SEASTROM MANUFACTURING CO INC
GW502CN126512NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.031 INCHES MINIMUM AND 0.041 INCHES MAXIMUM
OVERALL DIAMETER0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 2651 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.010 INCHES NOMINAL


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