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National Stock Number:
5310-01-498-7540
Federal Supply Class:
5310
National Item Identification Number:
014987540
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:
| 5HG64002-113 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 1.800 INCHES MINIMUM AND 1.950 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTMB194 C17200-TD02 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | BERYLLIUM COPPER OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | WASHER | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 2.550 INCHES MINIMUM AND 2.600 INCHES MAXIMUM |
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