National Item Identification Number
99-743-1550
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)
K8032
SUN CHEMICALS LTD
COW LANE
WATFORD
WD2 6PL
UNITED KINGDOM
01923 673231
K8082
ULTRA ELECTRONICS LTD SONAR & COMMUN
ATION SYSTEMS
BRIDPORT ROAD
GREENFORD
UB6 8UA
UNITED KINGDOM
020 8813 4567
Reference Numbers (Part Numbers)
7-706-01-065
770601065
Required Categories
Required Description