National Item Identification Number
01-043-2451
National Stock Number
Item Name
WASHER,SHOULDERED AND RECESSED
Federal Supply Class
5310
Description
A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. 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)
99167
Reference Numbers (Part Numbers)
716908
Required Categories
MATERIAL
HARDNESS RATING
STYLE DESIGNATOR
HOLE DIAMETER
SHOULDER DIAMETER
O
Required Description
STEEL OVERALL
30.0 ROCKWELL C MINIMUM AND
35.0 ROCKWELL C MAXIMUM
36 SHOULDER
