5310-01-269-5147 WASHER,FLAT Index 5310-01-269-5149 WASHER,RECESSED

National Stock Number:
5310-01-269-5148

Federal Supply Class:
5310

National Item Identification Number:
012695148

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:
NAS1515A10L80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
COLORBLUE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM
HOLE DIAMETER0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM
OVERALL DIAMETER1.183 INCHES MINIMUM AND 1.208 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONZZ-R-765,CL 1A,GR 50 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSILICON OVERALL
MINIMUM TENSILE STRENGTH700 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESLOW TEMPERATURE MINUS 100 DEG. FAHRENHIET SILICONE
THICKNESS0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM


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