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National Stock Number:
5310-01-301-2154
Federal Supply Class:
5310
National Item Identification Number:
013012154
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:
| 13294667 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 13294667 | 1P230 | SPECIALTY WASHER CO OF SOUTH CAROLINA INC |
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Techincal Specification:
| OVERALL DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM | | SPECIAL FEATURES | MATERIAL IS STEEL COMP631;SURFACE TREATMENT DOC QQ-P-35;SURFACE TREATMENT PASSIVATE;MATERIAL DOCUMENT AMS-5529 | | TEST DATA DOCUMENT | 18876-13294667 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) | | THICKNESS | 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
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