5310-01-031-6947 WASHER,FLAT Index 5310-01-031-6949 WASHER,CONCAVE

National Stock Number:
5310-01-031-6948

Federal Supply Class:
5310

National Item Identification Number:
010316948

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:
10122011A486GNIMIKKEISTOKESKUS NCB FINLAND
NAS1197-2L80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.095 INCHES MINIMUM AND 0.115 INCHES MAXIMUM
OVERALL DIAMETER0.245 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8,TEMPER H34 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 TEMPER H36 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/8 TEMPER H38 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 5052 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIFICATION/STANDARD DATA80205-NAS1197 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THICKNESS0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM


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