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National Stock Number:
5310-01-019-4309
Federal Supply Class:
5310
National Item Identification Number:
010194309
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:
| 649764 | 3H889 | PARKER-HANNIFIN CORPORATION | | 649764 | 92003 | PARKER HANNIFIN CORPORATION DIV AEROSPACE GROUP HEADQUARTERS | | 649764 | 99551 | GOODRICH CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND W/FLATS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.406 INCHES MINIMUM AND 0.410 INCHES MAXIMUM | | HOLE WIDTH ACROSS FLATS | 0.343 INCHES MINIMUM AND 0.347 INCHES MAXIMUM | | OVERALL DIAMETER | 0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 410 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND W/FLATS | | WIDTH ACROSS FLATS | 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
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