1055-00-651-8666 SHAFT,IDLER SPROCKE Index 1055-00-651-8668 HOLD DOWN ASSEMBLY

National Stock Number:
3020-00-651-8667

Federal Supply Class:
3020

National Item Identification Number:
006518667

Description:
SPROCKET WHEEL

Detail:
A toothed wheel whose teeth or sprockets are designed to be engaged with the links of a pitch chain, track, or the like. It is usually used for transmitting power.


Manufacturer Information:
875925519204ARMY, UNITED STATES DEPARTMENT OF THE


Techincal Specification:
DISTANCE FROM HUB END TO FLANGE END1.016 INCHES NOMINAL BB END
ASA STANDARD CHAIN NUMBER50
BORE DIAMETER1.5000 INCHES MINIMUM AND 1.5020 INCHES MAXIMUM
BORE TYPESTRAIGHT
BORE LENGTH2.438 INCHES NOMINAL
COUNTERBORE DEPTH0.188 INCHES NOMINAL
COUNTERBORE LOCATIONBB END
COUNTERBORE DIAMETER2.000 INCHES NOMINAL
DESIGN FORMPLAIN
FURNISHED ITEMSCOUNTERBORE
FACE WIDTH0.343 INCHES NOMINAL
FIRST STEP DIAMETER2.375 INCHES NOMINAL AA END
FIRST STEP LENGTH0.500 INCHES NOMINAL AA END
HARDNESS RATING TEST METHODNOT RATED
HUB OUTSIDE DIAMETER1.995 INCHES MINIMUM AND 2.000 INCHES MAXIMUM AA END
HUB OUTSIDE DIAMETER2.375 INCHES NOMINAL BB END
OUTSIDE DIAMETER3.915 INCHES MINIMUM AND 3.920 INCHES MAXIMUM
OVERALL LENGTH2.438 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-681, CLASS 120-95 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 120-95
PITCH DIAMETER3.599 INCHES NOMINAL
PROTRUDING HUB CHARACTERISTICPLAIN OR STEPPED
SECOND STEP LENGTH0.5785 INCHES NOMINAL AA END
SPECIAL FEATURESSECOND HUB END TAPERED,0.376 IN. LG OF TAPER,2.250 IN. DIA. OFTAPER AT SMALL END
STYLE DESIGNATORPLAIN
SURFACE TREATMENTPHOSPHATE
TEETH QUANTITY PER ROW18
TEETH ROW QUANTITY1
TOOTH PITCH0.625 INCHES NOMINAL


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