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National Stock Number:
5310-01-206-7304
Federal Supply Class:
5310
National Item Identification Number:
012067304
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:
| 120002-0021 | 99657 | MAROTTA CONTROLS INC | | 120002-21 | 99657 | MAROTTA CONTROLS INC | | 22295Y ITEM 14 | 99657 | MAROTTA CONTROLS INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM | | OVERALL DIAMETER | 0.480 INCHES MINIMUM AND 0.490 INCHES MAXIMUM | | MATERIAL | STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 322 OR STEEL COMP 324 OR STEEL COMP 347 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
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