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National Stock Number:
5310-01-009-3604
Federal Supply Class:
5310
National Item Identification Number:
010093604
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:
| 56B23012-15 | 98296 | STANDARD MFG CO INC | | 56B23012-15 | 98750 | SAN ANTONIO AIR LOGISTICS CENTER | | 56B23012-15 | 98752 | WARNER ROBINS AIR LOGISTICS CENTER | | 56B23012-6 | 98750 | SAN ANTONIO AIR LOGISTICS CENTER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 70.0 ROCKWELL B MINIMUM AND 85.0 ROCKWELL B MAXIMUM | | HEAT TREATMENT | COLD ROLLED | | OVERALL DIAMETER | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-698,COMP 1020,COND CR,TEMPER 2,FINISH 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1020 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | DIAMETER 1.190 IN. MIN. AND 1.205 IN. MAX. | | THICKNESS | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM |
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