NSN 3020-00-321-3856

Part Details | SPROCKET WHEEL

3020-00-321-3856 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.

Alternate Parts: 139C6319, 3020-00-321-3856, 00-321-3856, 3020003213856, 003213856

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
30NOV 18, 197300-321-385604456 ( SPROCKET WHEEL )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 3020-00-321-3856
Part Number Cage Code Manufacturer
139C631905606GENERAL DYNAMICS-OTS, INC.DBA GD-OTS (WILLISTON)
Technical Data | NSN 3020-00-321-3856
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OUTSIDE DIAMETER3.250 INCHES NOMINAL
OVERALL LENGTH0.750 INCHES NOMINAL
PITCH DIAMETER2.620 INCHES NOMINAL
FACE WIDTH0.150 INCHES NOMINAL
HUB END OUTSIDE DIAMETER AND LOCATIONBBZ0.760 INCHES NOMINAL
DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATIONBBZ0.600 INCHES NOMINAL
DESIGN FORM PLAIN
LIGHTENING HOLE NOT INCLUDED
BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED ROLLER CHAIN
ROLLER CHAIN PITCH TYPE FOR WHICH DESIGNED SINGLE PITCH
GUIDE NOT INCLUDED
TEETH ROW QUANTITY1
TEETH QUANTITY PER ROW4
TOOTH PITCH1.086 INCHES NOMINAL
MATERIAL STEEL COMP 4130
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729, COMP 4130, COND N MIL SPEC SINGLE MATERIAL RESPONSE
HARDNESS RATING TEST METHOD ROCKWELL
TEETH HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
METALLIC HARDNESS RATING AND LOCATIONABQ30.0 ROCKWELL C MINIMUM AND ABQ35.0 ROCKWELL C MAXIMUM
BORE BEARING NOT INCLUDED
BORE TYPE INVOLUTE SPLINE
COUNTERBORE FEATURE NOT INCLUDED
SPLINE QUANTITY15
SPLINE MAJOR DIAMETER0.525 INCHES NOMINAL
SPLINE MINOR DIAMETER0.438 INCHES NOMINAL
SPLINE LENGTH0.750 INCHES NOMINAL
SPLINE PRESSURE ANGLE IN DEG30.0
SPLINE PITCH DIAMETER0.469 INCHES NOMINAL