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National Stock Number:
5310-99-547-6583
Federal Supply Class:
5310
National Item Identification Number:
995476583
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:
| 229-040274 | 33827 | BAE SYSTEMS INTEGRATED DEFENSE SOLUTIONS INC. | | 229-040274 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 5.00 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | BS970 PART 4 GRADE 321S20 NATIONAL SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763 CLASS 321 CONDITION A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | LOAD SPREADER | | PERIPHERAL SHAPE STYLE | SQUARE | | WIDTH ACROSS FLATS | 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THICKNESS | 0.030 INCHES MINIMUM AND 0.031 INCHES MAXIMUM |
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