National Item Identification Number
01-039-4109
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)
02750
EATON AEROSPACE LLC
DBA ENGINEERED SENSORS DIV
15 DURANT AVE
BETHEL
CT
06801
203-796-6183
06RP6
DRS POWER & CONTROL TECHNOLOGIES
INC.
21 SOUTH ST
DANBURY
CT
06810
203-798-3236
Reference Numbers (Part Numbers)
10082
10186PC.29
11352PC25
11352PC25
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HOLE DIAMETER
PERIPHERAL SHAPE
Required Description
STEEL CORROSION RESISTING OVERALL
QQ-S-766,COND A FED STD SINGLE MATERIAL RESPO