5310-00-550-3956 WASHER,FLAT Index 5310-00-550-3958 WASHER,FLAT

National Stock Number:
5310-00-550-3957

Federal Supply Class:
5310

National Item Identification Number:
005503957

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:
166411-1900AT62SIEMENS ENERGY, INC.
166411-1900UBG9CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
166411-19030760INGERSOLL RAND CO
166411-190830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
166411-19088032CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
166411-19088663DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM
OVERALL DIAMETER1.558 INCHES MINIMUM AND 1.559 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-I-652,CL30 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.1245 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM


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