National Item Identification Number
01-131-2958
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)
1U854
EXCEL MANUFACTURING INC
3258 S HOOVER RD
WICHITA
KS
67215
316-942-0432
25989
76301
Reference Numbers (Part Numbers)
74A110681-2003
74A110681-2003
74A110681-2003
Required Categories
MATERIAL
HOLE DIAMETER
SHOULDER DIAMETER
OUTSIDE DIAMETER
RECESS DIAMETER
S
Required Description
ALUMINUM ALLOY 7075 OVERALL
0.312 INCHES MINIMUM AND
0.319 INCHES MAXIMUM
1.8