5310-01-122-3216 WASHER,FLAT Index 5310-01-122-3219 WASHER,SPLIT

National Stock Number:
5310-01-122-3218

Federal Supply Class:
5310

National Item Identification Number:
011223218

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.


Manufacturer Information:
10109391A486GNIMIKKEISTOKESKUS NCB FINLAND
74A410522-200176301THE BOEING COMPANY


Techincal Specification:
MATERIALCOPPER ALLOY 172 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530,TEMPER AT FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSHOULDERED AND RECESSED
HOLE DIAMETER2.9700 INCHES MINIMUM AND
2.9750 INCHES MAXIMUM
SHOULDER DIAMETER3.1900 INCHES MINIMUM AND
3.1915 INCHES MAXIMUM
OUTSIDE DIAMETER3.504 INCHES MINIMUM AND
3.506 INCHES MAXIMUM
RECESS DIAMETER3.090 INCHES MINIMUM AND
3.095 INCHES MAXIMUM
SHOULDER HEIGHT0.565 INCHES NOMINAL
MATERIAL THICKNESS0.089 INCHES MINIMUM AND
0.090 INCHES MAXIMUM
RECESS ANGLE88.0 DEGREES MINIMUM AND
92.0 DEGREES MAXIMUM
SURFACE FINISH63.0 MICROINCHES TOP


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