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National Stock Number:
5310-00-357-1927
Federal Supply Class:
5310
National Item Identification Number:
003571927
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:
| NAS1401-10C8 | 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 | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | SPECIAL FEATURES | 0.06 IN. RADIUS ALL CORNERS,0.250 IN. RADIUS ONE SIDE OF ONE END | | PERIPHERAL SHAPE STYLE | SQUARE | | SPECIFICATION/STANDARD DATA | 80205-NAS1401 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD | | WIDTH ACROSS FLATS | 1.090 INCHES MINIMUM AND 1.150 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.250 INCHES NOMINAL |
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