5340-00-331-3331 BOLT,CHAIN Index 5310-00-331-3333 NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-331-3332

Federal Supply Class:
5310

National Item Identification Number:
003313332

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:
814688718876U S ARMY AVIATION AND MISSILE COMMAND
AN960-C1816D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
NAS1149C1890R80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
FF-W-9281348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
AN960C181688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
MATERIALSTEEL CORROSION RESISTING OR
STEEL COMP 321 OR
STEEL COMP 347 OR
STEEL COMP 348 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND
MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.130 INCHES MINIMUM AND
1.150 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.870 INCHES MINIMUM AND
1.895 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.080 INCHES MINIMUM AND
0.100 INCHES MAXIMUM
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-W-92


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