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National Stock Number:
5310-00-078-4787
Federal Supply Class:
5310
National Item Identification Number:
000784787
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:
| 309R023H01 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 309R023H01 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.551 INCHES MINIMUM AND 0.552 INCHES MAXIMUM | | OVERALL DIAMETER | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-M-31,COMP.AZ31B FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | MAGNESIUM ALLOY AZ31B OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SUPPLEMENTARY FEATURES | NEXT HIGHER ASSY 1430000778865 ON F-4 AIRCRAFT | | THICKNESS | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
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