SPACER WASHER
P/N SS4409-034
NSN 5310-01-283-1639
MFG SIKORSKY
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   WASHER,FLAT
DEFINITION:  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.
            
 
CHARACTERISTIC                          VALUE
CROSS-SECTIONAL SHAPE STYLE             RECTANGULAR                                       
HOLE DIAMETER                           0.328 INCHES NOMINAL                             
PERIPHERAL SHAPE STYLE                  ROUND                                            
CENTER HOLE SHAPE STYLE                 ROUND                                             
THICKNESS                               0.090 INCHES NOMINAL                             
OVERALL DIAMETER                        1.000 INCHES NOMINAL                             
MATERIAL                                STEEL COMP 301 OVERALL                           
MATERIAL DOCUMENT AND                   MIL-S-5059,1/2 HARD MIL SPEC SINGLE MATERIAL     
CLASSIFICATION                          RESPONSE OVERALL                                 
SURFACE TREATMENT                       PASSIVATE OVERALL                                
SURFACE TREATMENT DOCUMENT              QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR    
AND CLASSIFICATION                      SS8435,CAGEC 78286 MFR REF SINGLE TREATMENT      
                                        RESPONSE OVERALL