National Item Identification Number
01-243-7346
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)
56977
DEPARTMENT OF THE ARMY HQ
U S ARMY ELECTRONICS RESEARCH AND
2800 POWDER MILL RD
HYATTSVILLE
MD
20783
07632
SERRA MFG CORP
3039 E LAS HERMANAS ST
COMPTON
CA
90221
310-537-4560
D8286
DIN DEUTSCHES INSTITUT FUER NORMUNG
EV
BURGGRAFENSTR. 6
BERLIN
10787
GERMANY
030-2601-0
86928
SEASTROM MANUFACTURING CO.
456 SEASTROM ST
TWIN FALLS
ID
83301
208-737-4300
Reference Numbers (Part Numbers)
C5000345-3
SMC1200.3
4.3DIN125X10CRN
5710-31-30P
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL COMP 302 OVERALL
QQ-S-766 FED SPEC ALL MATERIAL RESPONSES OVERALL
PASSIV