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National Stock Number:
5310-01-018-1443
Federal Supply Class:
5310
National Item Identification Number:
010181443
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:
| 69387-16 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC | | 69387-16 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 301 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059,1/4 H MIL SPEC SINGLE MATERIAL RESPONSE OR | | AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.545 INCHES MINIMUM AND | | 0.549 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.779 INCHES MINIMUM AND | | 0.783 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 23.0 ROCKWELL C MINIMUM | | SPECIAL FEATURES | 0.011 IN MIN,0.013 IN MAX THICKNESS | | HEAT TREATMENT | COLD ROLLED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 45934 | | DESIGN CONTROL REFERENCE | 69387-16 |
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