5310-01-017-8905 NUT,PLAIN,ROUND Index 5330-01-017-8909 SEAL,PLAIN ENCASED

National Stock Number:
5310-01-017-8907

Federal Supply Class:
5310

National Item Identification Number:
010178907

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.


Manufacturer Information:
0211014153DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA
15067006481NORTHROP GRUMMAN SYSTEMS CORPORATION
734-601072-00090073CMC ELECTRONICS INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.125 INCHES NOMINAL
OVERALL DIAMETER0.190 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-17091 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYAMIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.045 INCHES NOMINAL


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