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National Stock Number:
5310-01-132-1078
Federal Supply Class:
5310
National Item Identification Number:
011321078
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:
| 10109631 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 4M27C5 | 10630 | ANILLO INDUSTRIES LLC | | 4M27C5 | 12829 | PIONEER MACHINE PRODUCTS INC. | | 4M27C5 | 34336 | TECT HYPERVELOCITY, INC. | | 4M27C5 | 70265 | ALL POWER MANUFACTURING CO. | | 4M27C5 | 76301 | THE BOEING COMPANY | | 4M27C5 | 98465 | LMI AEROSPACE INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM | | OVERALL DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 COMP 302 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 CLASS 302 FED SPEC 1ST MATERIAL RESPONSE OR MIL-T-8506 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 302 OR STEEL COMP 304 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
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