5310-99-139-5995 WASHER,FLAT Index 5305-99-139-6061 SCREW,MACHINE

National Stock Number:
5310-99-139-5996

Federal Supply Class:
5310

National Item Identification Number:
991395996

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:
100355-9000-083K0967MBDA UK LTD
100355-9000-083K1020MBDA UK LTD
938020-16010K0268RAYTHEON SYSTEMS LIMITED
100355-9000-083K1806MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT)
100355-9000-083KA464MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY
20101276KC1M9BAE SYSTEMS MARITIME SERVICESLIMITED
BS4320K7766BRITISH STANDARDS INSTITUTION


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