National Item Identification Number
00-279-9075
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)
60756
CEPEDA ASSOCIATES INC.
11100 DECIMAL DRIVE
LOUISVILLE
KY
40299
502-267-4945
NSN (National Stock Number) 5310-00-279-9075, 5310002799075 NIIN (National Identification Number) 00-279-9075, 002799075
Part Numbers (Reference Numbers)
NAS1587-4
1034-D310 ITEM 12
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL COMP 321 OR
STEEL COMP 347 OVERALL
MIL-S-6721 MIL SPEC ALL MATERIAL RESP
