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National Stock Number:
5310-00-357-1938
Federal Supply Class:
5310
National Item Identification Number:
003571938
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:
| NAS1401-3C5 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.193 INCHES MINIMUM AND | | 0.213 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | RECTANGULAR | | LENGTH | 0.430 INCHES MINIMUM AND | | 0.490 INCHES MAXIMUM | | WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND | | 0.490 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.160 INCHES NOMINAL | | SPECIAL FEATURES | 0.06 IN. RADIUS ALL CORNERS,0.160 IN. RADIUS ONE SIDE OF ONE END | | SPECIFICATION/STANDARD DATA | 80205-NAS1401 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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