National Item Identification Number
01-197-6422
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)
S3465
LAND SYSTEMS HAGGLUNDS AB
ORNSKOLDSVIK
S-89182
SWEDEN
4666080000
0BTV3
REIDVILLE HYDRAULICS & MFG INC
87 SHARON RD
WATERBURY
CT
06705
203-597-8295
32353
ABB CONTROL INC
1206 HATTON RD
WICHITA FALLS
TX
76302
940-397-7000
32353
ABB CONTROL INC
1206 HATTON RD
WICHITA FALLS
TX
76302
940-397-7000
Reference Numbers (Part Numbers)
478 1028-002
478 1028-002
58313-90017 ITEM 044
58313-90017 ITEM-44
Required Categories
MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S
Required Description
STEEL OVERALL
0.551 INCHES NOMINAL
1 ROUND
0.787 INCHES NOMINAL
1 ROUND
1 R