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National Stock Number:
5310-01-056-4424
Federal Supply Class:
5310
National Item Identification Number:
010564424
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:
| 0N503182 | 98230 | NATIONAL SECURITY AGENCY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.239 INCHES MINIMUM AND 0.241 INCHES MAXIMUM | | OVERALL DIAMETER | 0.379 INCHES MINIMUM AND 0.381 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-P-15047 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | PLASTIC POLYAMIDE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | TEST DATA DOCUMENT | 98230-0N503182 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THICKNESS | 0.012 INCHES MINIMUM AND 0.018 INCHES MAXIMUM |
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