National Item Identification Number
01-265-4815
National Stock Number
Item Name
WASHER,SHOULDERED AND RECESSED
Federal Supply Class
5310
Referenced on: http://constructiontractors.tpub.com//TM-5-2420-222-34P/css/TM-5-2420-222-34P_551.htm
Referenced on: http://constructiontractors.tpub.com//TM-5-2420-222-34P/css/TM-5-2420-222-34P_592.htm
Referenced on: http://constructiontractors.tpub.com//TM-5-2420-222-34P/css/TM-5-2420-222-34P_648.htmDescription
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)
75160
NSN (National Stock Number) 5310-01-265-4815, 5310012654815 NIIN (National Identification Number) 01-265-4815, 012654815
Part Numbers (Reference Numbers)
T21965
Required Categories
MATERIAL
HARDNESS RATING
STYLE DESIGNATOR
HOLE DIAMETER
SHOULDER DIAMETER
O
Required Description
STEEL COMP 1117 OVERALL
79.0 ROCKWELL A MINIMUM
37 SHOULDERED AND RECESSED
1.