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National Stock Number:
5310-01-249-0240
Federal Supply Class:
5310
National Item Identification Number:
012490240
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:
| AS102584-S6 | 10630 | ANILLO INDUSTRIES LLC | | HS5393S6 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | SL20708S6 | 16258 | SPACE-LOK, INC. | | WC22S-6 | 56878 | SPS TECHNOLOGIES, LLC | | WZZS-S6 | 56878 | SPS TECHNOLOGIES, LLC | | HS5393S6 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.375 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.750 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.071 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | INSIDE LEFT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 43.0 ROCKWELL C MAXIMUM | | PRECIOUS MATERIAL AND LOCATION | OUTSIDE SURFACE SILVER |
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