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National Stock Number:
5310-00-118-0031
Federal Supply Class:
5310
National Item Identification Number:
001180031
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:
| 250443 | 81873 | WOODWARD HRT INC |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.058 INCHES MINIMUM AND 0.070 INCHES MAXIMUM | | OVERALL DIAMETER | 0.150 INCHES MINIMUM AND 0.162 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720,COMP 302 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-7720,COMP 303S MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-7720,COMP 303SES MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-7720,COMP 316 MIL SPEC 4TH MATERIAL RESPONSE OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.020 INCHES NOMINAL |
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