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National Stock Number:
5310-00-526-9825
Federal Supply Class:
5310
National Item Identification Number:
005269825
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:
| 10121453 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 4M36-01032 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HEAT TREATMENT | ANNEALED | | HOLE DIAMETER | 0.131 INCHES MINIMUM AND 0.151 INCHES MAXIMUM | | OVERALL DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 ANNEALED MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE AND 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 | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM |
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