National Item Identification Number
00-470-5953
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)
52729
UNITED EQUIPMENT ACCESSORIES INC
2103 E BREMER AVE
WAVERLY
IA
50677
319-352-3946
7Y913
PREVENTIVE MAINTENANCE SERVICES INC.
4714 CURTIS LANE
NEW IBERIA
LA
70560
337-364-0032
71995
DRESSER INDUSTRIES INC
WAUKESHA ENGINE DIV
1101 SAINT PAUL AVE
WAUKESHA
WI
53188
262-547-3311
71995
DRESSER INDUSTRIES INC
WAUKESHA ENGINE DIV
1101 SAINT PAUL AVE
WAUKESHA
WI
53188
262-547-3311
Reference Numbers (Part Numbers)
RC8548
103340
103340
208355
810370
Required Categories
MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S
Required Description
STEEL OVERALL
0.312 INCHES NOMINAL
1 ROUND
0.750 INCHES NOMINAL
1 ROUND
1 R