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National Stock Number:
5310-99-207-3902
Federal Supply Class:
5310
National Item Identification Number:
992073902
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:
| 870-50168 | K7705 | KNDS DEFENCE UK LIMITED | | A26933 | K0973 | MINISTRY OF DEFENCE PROCUREMENT EXECUTIVE | | MEXEA26933 | K0973 | MINISTRY OF DEFENCE PROCUREMENT EXECUTIVE |
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Techincal Specification:
| MATERIAL | STEEL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM | | SPECIAL FEATURES | ALSO CLEAN SHERARDISE,BS4921-1988 CLASS 1 COATING,MAX THK 0.002 | | SURFACE TREATMENT | PASSIVATE | | THICKNESS | 0.161 INCHES MINIMUM AND 0.223 INCHES MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DATE OF PRECEDING RECORD | 91085 | | HOLE DIAMETER | 1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MOD (A) MVEE MC SPECIFICATION BRIDGING/496 MS A MFR REF SINGLE MATERIAL RESPONSE |
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