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National Stock Number:
5310-01-615-2545
Federal Supply Class:
5310
National Item Identification Number:
016152545
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.
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Manufacturer Information:
| HS4244C9 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 1 CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.564 INCHES MINIMUM AND | | 0.568 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.958 INCHES MINIMUM AND | | 0.978 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.071 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | INSIDE LEFT CORNER CHAMFER ANGLE | 44.5 DEGREES MINIMUM AND | | 45.5 DEGREES MAXIMUM | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 43.0 ROCKWELL C MAXIMUM | | SPECIAL FEATURES | COUNTERSUNK FLAT WASHER HAS CHAMFER DIAMETER OF 0.689 IN | | PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER,CLOSE TOLERANCE |
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