National Item Identification Number
00-220-6548
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)
51501
ROGERS BROTHERS CORPORATION
DBA ROGERS TRAILERS
100 ORCHARD STREET
ALBION
PA
16401
800-441-9880
66155
PORTA DRILL INC
3811 JOLIET ST
39-P
DENVER
CO
80239
51501
ROGERS BROTHERS CORPORATION
DBA ROGERS TRAILERS
100 ORCHARD STREET
ALBION
PA
16401
800-441-9880
51501
ROGERS BROTHERS CORPORATION
DBA ROGERS TRAILERS
100 ORCHARD STREET
ALBION
PA
16401
800-441-9880
66155
PORTA DRILL INC
3811 JOLIET ST
39-P
DENVER
CO
80239
66155
PORTA DRILL INC
3811 JOLIET ST
39-P
DENVER
CO
80239
19207
Reference Numbers (Part Numbers)
R664
R664
R664
W2-1-2-5-1-4
W21-2-51-4-3-8
1-2196
2-2196
565027
7089457
Required Categories
MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S
Required Description
STEEL OVERALL
2.031 INCHES NOMINAL
1 ROUND
5.250 INCHES NOMINAL
1 ROUND
1 R