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National Stock Number:
5310-00-125-5952
Federal Supply Class:
5310
National Item Identification Number:
001255952
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:
| 1603660-169 | 99251 | MISSION SYSTEMS DAVENPORT INC. |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM | | OVERALL DIAMETER | 0.372 INCHES MINIMUM AND 0.374 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 COND A ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-5059 COND ANNEALED ORHARD MIL SPEC 2ND MATERIAL RESPONSE OR ASTM A582 COND A ASSN STD 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303SE OR STEEL COMP 301 OR STEEL COMP 303 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM |
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