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National Stock Number:
5310-00-855-3105
Federal Supply Class:
5310
National Item Identification Number:
008553105
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:
| 549715 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2014 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE FILM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.870 INCHES MINIMUM AND | | 0.880 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.730 INCHES MINIMUM AND | | 1.740 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.118 INCHES MINIMUM AND | | 0.122 INCHES MAXIMUM | | HARDNESS RATING | 78.0 ROCKWELL B MINIMUM | | SPECIAL FEATURES | OUTSIDE EDGES CHAMFERED 45 DEG 0.040 TO 0.050 | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 73030 | | DESIGN CONTROL REFERENCE | 549715 |
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