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National Stock Number:
5310-01-615-3892
Federal Supply Class:
5310
National Item Identification Number:
016153892
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:
| BACW10EG12CU | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | IRON ALLOY 660 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700, TYPE 2 OR 8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.3750 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.610 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.057 INCHES MINIMUM AND | | 0.069 INCHES MAXIMUM | | INSIDE LEFT CORNER CHAMFER ANGLE | 40.0 DEGREES MINIMUM AND | | 50.0 DEGREES MAXIMUM | | SPECIAL FEATURES | CENTER HOLE COUNTERSUNK FROM 0.449-0.388; HEAT TREATMENT 140 KSI PER MIL-H-6875 |
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