National Item Identification Number
01-047-7940
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)
59501
60674
MICROWAVE DEVICES INC
1150 N. GRAHAM RD
FRANKLIN
IN
46131
317-736-8833
81579
MASON ELECTRIC CO
DBA MASON ELECTRIC COMPANY
13955 BALBOA BLVD
SYLMAR
CA
91342
818-361-3366
Reference Numbers (Part Numbers)
PM21641
PM21641
PM21641
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL OVERALL
QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CADMIUM OVERA