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National Stock Number:
5310-01-265-4815
Federal Supply Class:
5310
National Item Identification Number:
012654815
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:
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Techincal Specification:
| FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 79.0 ROCKWELL A MINIMUM | | HEAT TREATMENT | HOT ROLLED | | HOLE DIAMETER | 1.260 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.875 INCHES NOMINAL | | MATERIAL THICKNESS | 0.160 INCHES NOMINAL | | MATERIAL | STEEL COMP 1117 OVERALL | | RECESS ANGLE | 60.0 DEGREES NOMINAL | | SHOULDER DIAMETER | 1.500 INCHES NOMINAL | | SHOULDER HEIGHT | 0.111 INCHES MINIMUM AND 0.121 INCHES MAXIMUM | | SPECIAL FEATURES | TWO GROOVES ON BOSS SURFACE 0.120 IN. WIDE 150 DEG APART | | STYLE DESIGNATOR | SHOULDERED AND RECESSED | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP |
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