5310-00-356-3480 WASHER,FLAT Index 3040-00-356-3482 COLLAR,SHAFT

National Stock Number:
5310-00-356-3481

Federal Supply Class:
5310

National Item Identification Number:
003563481

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:
5139682423KLEINSCHMIDT INC
SCB69325-880063US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR


Techincal Specification:
FEATURES PROVIDEDCASEHARDENED
OVERALL DIAMETER1.000 INCHES MINIMUM AND 1.031 INCHES MAXIMUM
SPECIAL FEATURESMATERIAL IS STEEL 1006 OR STEEL 1020 LOCATION UNKNOWN
SURFACE FINISH32.0 MICROINCHES BOTTOM
SURFACE FINISH32.0 MICROINCHES TOP
THICKNESS0.028 INCHES MINIMUM AND 0.030 INCHES MAXIMUM


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