NSN 3020-00-249-9937, 3020002499937 Details - Gear Helical Parts List

Item Name Gear Helical
Federal Supply Group (FSG) Mechanical Power Transmission Equipment
Federal Supply Class (FSC) 3020 Gear Pulley Sprocket and Transmission Chain
National Item Identification Number (NIIN) 00-249-9937 (002499937)
NCB Code USA (00)

Technical Characteristics of NSN 3020002499937

MRCCriteriaCharacteristic
AAQLBODY STYLEPLAIN, SOLID
AGJSPITCH DIAMETER1.3940 INCHES MINIMUM AND 1.3960 INCHES MAXIMUM
AJLATEETH QUANTITY13
ANTPBORE STYLEW/ KEYWAY BOTH ENDS
CQFMHARDNESS RATING21.0 ROCKWELL C NOMINAL OVERALL
CWCDNOMINAL OUTSIDE DIAMETER1.6005 INCHES
CWMWTEETH TYPESINGLE HELIX
CWNHTOOTH FORMSTANDARD
CWNMTOOTH DIRECTIONLEFT
CWPPPRESSURE ANGLE14.5000 DEGREES
CWPZHELIX ANGLE21.2666 DEGREES
CWRMFACE NOMINAL WIDTH0.7485 INCHES
CWRSBORE NOMINAL DIAMETER0.4985 INCHES BOTH ENDS
CWSNKEYWAY NOMINAL WIDTH0.1276 INCHES BOTH ENDS
CWSRNOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM0.3302 INCHES BOTH ENDS
FEATSPECIAL FEATURESCOUNTERBORE 1ST END 0.1375 IN. DEEP BY 0.5625 IN. DIA
MATTIII MATERIALSTEEL COMP 1137 OVERALL
MDCLMATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL AND AISI/SAE 1137 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLSTYLE DESIGNATORHUBLESS

  Relevant Components for NSN - 3020-00-249-9937, 3020002499937

3010-00-001-0013 (3010000010013) 3010-00-001-0069 (3010000010069) 3010-00-001-2168 (3010000012168) 3010-00-001-2173 (3010000012173)
3010-00-001-3588 (3010000013588) 3010-00-001-5963 (3010000015963) 3010-00-001-6187 (3010000016187) 3010-00-001-6188 (3010000016188)
3010-00-001-6189 (3010000016189) 3010-00-001-6191 (3010000016191) 3010-00-001-6230 (3010000016230) 3010-00-001-6242 (3010000016242)

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