National Item Identification Number
National Stock Number
Federal Supply Class
A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use BEARING, SLEEVE; BUSHING SLEEVE; or SPACER, SLEEVE. Excludes INSULATOR, WASHER and thrust type washers.
Commercial and Government Entity Code (Supplier Data)
SEASTROM MANUFACTURING CO.
456 SEASTROM ST
Reference Numbers (Part Numbers)
PLASTIC PHENOLIC OVERALL
0.270 INCHES MINIMUM AND
0.280 INCHES M