4730-00-438-6935 REDUCER,PIPE Index 3020-00-438-6937 GEAR CLUSTER,SPUR

National Stock Number:
5310-00-438-6936

Federal Supply Class:
5310

National Item Identification Number:
004386936

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:
1089801819200US ARMY ARDEC RDECOM
388860-1010001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
APERTURE DIAMETER0.765 INCHES NOMINAL
MATERIALSTEEL
OUTSIDE DIAMETER1.50 INCHES NOMINAL
OVERALL THICKNESS0.062 INCHES NOMINAL
SPECIAL FEATURESMATERIAL: STEEL, CARBON 1008-1025, COLD ROLLED
STYLE DESIGNATORCIRCULAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTPHOSPHATE ZINC


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