National Item Identification Number
00-938-8387
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)
81343
D9182
28528
ITT INDUSTRIES INC
ITT AEROSPACE COMMUNICATIONS
100 KINGSLAND RD
CLIFTON
NJ
07014
973-284-0123
31633
7X677
NSN (National Stock Number) 5310-00-938-8387, 5310009388387 NIIN (National Identification Number) 00-938-8387, 009388387
Part Numbers (Reference Numbers)
MS9549-10
MS9549-10
303887
4034520
4034520
507295
507295
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HOLE DIAMETER
PERIPHERAL SHAPE
Required Description
STEEL COMP 321 OVERALL
AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
0.27
