5310-00-641-9711 WASHER,FLAT Index 5365-00-641-9725 SPACER,RING

National Stock Number:
5310-00-641-9714

Federal Supply Class:
5310

National Item Identification Number:
006419714

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:
506-5909-00313499ROCKWELL COLLINS, INC.
506-5909-00395105ROCKWELL COLLINS, INC.
567308-157733STEWART-WARNER CORPORATION
91G1544-106481NORTHROP GRUMMAN SYSTEMS CORPORATION
WA1234-180249BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.257 INCHES NOMINAL
OVERALL DIAMETER0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.0136 INCHES MINIMUM AND 0.0176 INCHES MAXIMUM


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