5330-01-511-3326 GASKET Index 4320-01-511-3328 SEAL ASSEMBLY,SHAFT,SPRING LOADE

National Stock Number:
5310-01-511-3327

Federal Supply Class:
5310

National Item Identification Number:
015113327

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:
12387279-1319207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
OVERALL DIAMETER0.868 INCHES MINIMUM AND 0.905 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A569, ANY TEMPER ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESIN ACCORDANCE WITH MS27183, CARBON STEEL EXCEPT FOR PROTECTIVE FINISH: MIL-STD-171, 1.9.2.2 WHICH IS: ELECTRODEPOSITED ZINC, ASTM B633, TY II, WITH SUPPLEMENTARY CHROMATE TREATMENT, NORMAL COLOR, NOT BLEACHED OR CLEAR; CLASS 2, 0.0005 INCH (13UM) THICK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171, 1.9.2.2 MIL STD 1ST TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THICKNESS0.064 INCHES MINIMUM AND 0.094 INCHES MAXIMUM


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