5330-01-445-6827 PACKING,PREFORMED Index 1730-01-445-6829 HOISTING UNIT,AIRCRAFT COMPONENT

National Stock Number:
5310-01-445-6828

Federal Supply Class:
5310

National Item Identification Number:
014456828

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:
12421464-0020FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP
12421464-00219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
17W0740113764MICRO PLASTICS INC
3818680C1338X5ND DEFENSE LLC
12421464-00245152OSHKOSH CORP
12421464-00275Q65OSHKOSH DEFENSE LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER8.5 MILLIMETERS MINIMUM AND 8.7 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D789 TY 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER18.7 MILLIMETERS MINIMUM AND 18.9 MILLIMETERS MAXIMUM
THICKNESS1.4 MILLIMETERS MINIMUM AND 1.7 MILLIMETERS MAXIMUM


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