5340-01-380-1558 STANDOFF,THREADED,SPACING Index 5305-01-380-1560 SCREW,CAP,SOCKET HEAD

National Stock Number:
5310-01-380-1559

Federal Supply Class:
5310

National Item Identification Number:
013801559

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:
12132F18-246E88032CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
12264B1888032CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
12728B18B0UBG9CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
12728B18B88032CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.810 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTMB444 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 625 OVERALL
OVERALL DIAMETER1.440 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESNO MERCURY,MERCURY CONTAMINATION OR MERCURY COMPOUNDS
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
THICKNESS0.120 INCHES MINIMUM AND 0.150 INCHES MAXIMUM


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