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National Stock Number:
5310-00-160-1590
Federal Supply Class:
5310
National Item Identification Number:
001601590
Description:
WASHER,SHOULDERED AND RECESSED
Detail:
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.
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Manufacturer Information:
| K641212-11 | 84955 | KAMAN AEROSPACE CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 90.0 ROCKWELL B MINIMUM | | HOLE DIAMETER | 2.250 INCHES MINIMUM AND 2.252 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.872 INCHES MINIMUM AND 2.873 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.416 INCHES MINIMUM AND 0.420 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY OVERALL | | RECESS DEPTH | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM | | RECESS DIAMETER | 2.500 INCHES NOMINAL | | SHOULDER DIAMETER | 2.615 INCHES MINIMUM AND 2.617 INCHES MAXIMUM | | SHOULDER HEIGHT | 0.174 INCHES MINIMUM AND 0.178 INCHES MAXIMUM | | STYLE DESIGNATOR | SHOULDERED AND RECESSED | | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES |
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