National Item Identification Number
00-580-3813
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)
S0254
KITO MFG CO. LTD
KAWASAKI
JAPAN
00405
ALLIANT TECHSYSTEMS INC
RR 02 210 STATE RT 956
KEYSER
WV
26726
304-726-5000
32448
56055
PRECISION SPEED MFG LLC
422 TIMBER RIDGE ROAD
517
MIDDLETOWN
CT
06457
860-635-8811
77445
97139
SLABE MACHINE PRODUCTS CO
4659 HAMANN PKWY
WILLOUGHBY
OH
44094
440-946-6555
Reference Numbers (Part Numbers)
270499
270499
270499
270499
270499
270499
270499
270499
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HOLE DIAMETER
PERIPHERAL SHAPE
Required Description
STEEL COMP 316 OVERALL
AMS 5648 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
0.34