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National Stock Number:
5310-00-492-5312
Federal Supply Class:
5310
National Item Identification Number:
004925312
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:
| 100168-370 | 79318 | MEGGITT NORTH HOLLYWOOD INC | | 10121424 | A486G | NIMIKKEISTOKESKUS NCB FINLAND |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.203 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059,COMP 301 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5059,COMP 302 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5059,COMP 304 MIL SPEC 3RD MATERIAL RESPONSE OR QQ-S-766,CLASS 301 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-766,CLASS 302 FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-766,CLASS 304 FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM |
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