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National Stock Number:
5310-01-207-9370
Federal Supply Class:
5310
National Item Identification Number:
012079370
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:
| 4685194-0020 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 4685194-0020 | 96169 | ELECTRIC BOAT CORPORATION | | 704-4685194 ITEM 20 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 87861-1507 ITEM 20 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.810 INCHES MINIMUM AND 0.830 INCHES MAXIMUM | | OVERALL DIAMETER | 2.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP E4340 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
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