National Item Identification Number
99-538-1450
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)
K1447
VT SHIPSBUILDING LTD
MAIN OFFICE BLOCK FLEET WAY. PORTSMO
TH NAVAL BASE
PORTSMOUTH
PO1 3AQ
UNITED KINGDOM
02392 857200
U4707
VT MARINE PRODUCTS LTD
HAMILTON ROAD
COSHAM PORTSMOUTH
PO6 4PX
UNITED KINGDOM
023 92 539750
Reference Numbers (Part Numbers)
RW1B151
W0090102-A
Required Categories
Required Description
