National Item Identification Number
01-187-9564
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)
8V613
21969
ZELENDA MACHINE AND TOOLS CORP
6602 AUSTIN ST
FLUSHING
NY
11374
718-896-2288
21969
ZELENDA MACHINE AND TOOLS CORP
6602 AUSTIN ST
FLUSHING
NY
11374
718-896-2288
1YQE8
ALLIANT TECHSYSTEMS INC.
3309 N. RESEDA CIRCLE
MESA
AZ
85215
480-324-8686
10630
ANILLO INDUSTRIES INC
2090 N GLASSELL ST
ORANGE
CA
92865
714-637-7000
86928
SEASTROM MANUFACTURING CO.
456 SEASTROM ST
TWIN FALLS
ID
83301
208-737-4300
Reference Numbers (Part Numbers)
HS7012-4
HS7012-4
M4DIN
M4DIN1440
OSS7012-4
4DIN1440
4DIN1440
Required Categories
MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S
Required Description
STEEL OVERALL
4.0 MILLIMETERS NOMINAL
1 ROUND
8.0 MILLIMETERS NOMINAL
1 ROUN
