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National Stock Number:
5310-01-066-7042
Federal Supply Class:
5310
National Item Identification Number:
010667042
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:
| 578946 | 77445 | RTX CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | BLANK RECTANGULAR | | HOLE DIAMETER | 0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM | | OUTSIDE LEFT CORNER CHAMFER ANGLE | 0.020 DEGREES MINIMUM AND 0.040 DEGREES MAXIMUM | | OVERALL DIAMETER | 0.530 INCHES MINIMUM AND 0.550 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5504 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5613 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
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