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National Stock Number:
5310-00-471-6451
Federal Supply Class:
5310
National Item Identification Number:
004716451
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:
| 3903723 | 56878 | SPS TECHNOLOGIES, LLC | | 3903723 | 86928 | SEASTROM MANUFACTURING CO INC | | 99-9459071 | 99995 | NATO STOCK NUMBER ASSIGNED BY ANOTHER NATION | | SP126G | K7766 | BRITISH STANDARDS INSTITUTION |
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Techincal Specification:
| MATERIAL | STEEL COMP 1524 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A29, UNS G15260 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.3300 INCHES MINIMUM AND | | 0.3400 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.5671 INCHES MINIMUM AND | | 0.5871 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.0180 INCHES MINIMUM AND | | 0.0220 INCHES MAXIMUM | | HARDNESS RATING | 21.2 ROCKWELL C MINIMUM AND | | 24.7 ROCKWELL C MAXIMUM |
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