National Item Identification Number
01-056-3241
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)
82918
08073
09772
WEST COAST LOCKWASHER CO
WEST COAST LOCKWASHER COMPANY INC.
16730 E JOHNSON DR
CITY OF INDUSTRY
CA
91745
626-968-5523
10630
ANILLO INDUSTRIES INC
2090 N GLASSELL ST
ORANGE
CA
92865
714-637-7000
56878
58009
MOELLER MANUFACTURING & SUPPLY INC
805 E CERRITOS AVE
ANAHEIM
CA
92805
714-999-5551
81205
Reference Numbers (Part Numbers)
BACW10AW4S
BACW10BN41P
BACW10BN41P
BACW10BN41P
BACW10BN41P
BACW10BN41P
BAC
Required Categories
MATERIAL
SURFACE TREATMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
HOLE
Required Description
STEEL COMP 1008 OR
STEEL COMP 1009 OR
STEEL COMP 1010 OR
STEEL COMP 1015 OR;