National Item Identification Number
01-122-5623
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)
00328
DESIGNATRONICS INC
DBA STERLING INSTRUMENT DIVISION
2101 JERICHO TPKE
NEW HYDE PARK
NY
11040
516-328-3300
29440
W. M. BERG INC
499 OCEAN AVE
EAST ROCKAWAY
NY
11518
516-596-1700
96214
Reference Numbers (Part Numbers)
G68-5
SS1-28
419366-5
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL COMP 1340H OR
STEEL COMP 303SE OVERALL
ASTM A582 ASSN STD ALL MATERIAL R