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National Stock Number:
5310-01-557-9382
Federal Supply Class:
5310
National Item Identification Number:
015579382
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:
| 30821 | 64665 | AERO RUBBER CO INC | | WSHR-E-059683 | 64665 | AERO RUBBER CO INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | COLOR | BLACK OVERALL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 40.0 SHORE DUROMETER NOMINAL | | HOLE DIAMETER | 1.095 INCHES MINIMUM AND 1.155 INCHES MAXIMUM | | OVERALL DIAMETER | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM | | MATERIAL | RUBBER SYNTHETIC OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | MATERIAL: EPDM RUBBER | | THICKNESS | 0.105 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
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