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National Stock Number:
5310-01-349-9639
Federal Supply Class:
5310
National Item Identification Number:
013499639
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:
| NAS1401-7C3 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.443 INCHES MINIMUM AND 0.463 INCHES MAXIMUM | | LENGTH | 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 ASSN STD 1ST MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 301 AND STEEL COMP 302 AND STEEL COMP 316 AND STEEL COMP 321 AND STEEL COMP 347 OVERALL | | PERIPHERAL SHAPE STYLE | RECTANGULAR | | SPECIFICATION/STANDARD DATA | 80205-NAS1401 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | WIDTH ACROSS FLATS | 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.090 INCHES NOMINAL |
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