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National Stock Number:
5310-01-169-3188
Federal Supply Class:
5310
National Item Identification Number:
011693188
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:
| 70209-26007-131 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.7023 INCHES MINIMUM AND 0.7033 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.188 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000,COND E4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.050 INCHES MINIMUM AND 0.055 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.060 INCHES NOMINAL | | SHOULDER DIAMETER | 1.0660 INCHES MINIMUM AND 1.0665 INCHES MAXIMUM | | SHOULDER HEIGHT | 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM | | STYLE DESIGNATOR | SHOULDERED AND RECESSED BOTH SIDES | | SURFACE FINISH | 63.0 MICROINCHES COUNTERBORE WALL | | SURFACE FINISH | 63.0 MICROINCHES SHOULDER FACE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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