National Item Identification Number
01-321-2439
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)
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
81205
Reference Numbers (Part Numbers)
BACW10BN6SP
BACW10BN6SP
BACW10BN6SP
BACW10BN6SP
BACW10BN6SP
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
IRON ALLOY 660 OVERALL
AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CADM
