National Item Identification Number
00-584-5706
National Stock Number
Item Name
WASHER,FLAT
Federal Supply Class
5310
Description
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.
Commercial and Government Entity Code (Supplier Data)
K4208
LEAFIELD ENGINEERING LTD
LEAFIELD WAY
CORSHAM
SN13 9SS
UNITED KINGDOM
01225 810771
94580
Reference Numbers (Part Numbers)
432593
432593
Required Categories
MATERIAL
HARDNESS RATING
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMET
Required Description
STEEL OVERALL
74.0 ROCKWELL B MINIMUM AND
84.0 ROCKWELL B MAXIMUM
0.172 INCHE