National Item Identification Number
00-253-8220
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)
07322
MINNESOTA RUBBER CO
1100 XENIUM LN N
1236
MINNEAPOLIS
MN
55441
952-927-1400
03538
LOCKHEED MARTIN CORPORATION
DBA MS2 DIV MARITIME SYSTEMS &
497 ELECTRONICS PKWY 5 BLD
LIVERPOOL
NY
13088
315-456-2622
A2309
WHITEHEAD ALENIA SISTEMI SUBACQUEI S
VIA DI LEVANTE 48
LIVORNO SALVIANO
57128
ITALY
00390586/840111
Reference Numbers (Part Numbers)
Q4210
7099332P001
763712
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HARDNESS RATING
HOLE DIAMETER;
Required Description
RUBBER SYNTHETIC OVERALL
412A,FSCM 24446 MFR REF SINGLE MATERIAL RESPONSE OVERA
