5330-99-832-6681 SEAL,SPECIAL Index 5315-99-832-7520 PIN,SPECIAL

National Stock Number:
5310-99-832-7503

Federal Supply Class:
5310

National Item Identification Number:
998327503

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:
43323256U1918MISSION SYSTEMS WIMBORNE LIMITED


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER10.00 MILLIMETERS NOMINAL
LENGTH1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONBS L163 NATIONAL SPEC SINGLE MATERIAL RESPONSE OR BS 168 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY OVERALL
PERIPHERAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESONE EDGE ROUNDED ONE SIDE
WIDTH ACROSS FLATS1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM
THICKNESS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM


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