3020-00-831-0254 ( 7748531 )

NSN Information
NSN FSC NIIN Item Name INC
3020-00-831-0254 3020 008310254 SPROCKET WHEEL 0445
NSN Features
MRC Parameter Characteristics
BYFN TEETH QUANTITY PER ROW 18
BYFB GROOVE/STEP LOCATION AA END
BYGF TOOTH PITCH 0.625 INCHES NOMINAL
AGJS PITCH DIAMETER 3.599 INCHES NOMINAL
BXSJ LIGHTENING HOLE NOT INCLUDED
BYZD HUB END OUTSIDE DIAMETER AND LOCATION 2.375 INCHES FRONT NOMINAL
ARJD DESIGN FORM PLAIN
BDTX SPLINE PITCH DIAMETER 1.4375 INCHES NOMINAL
AXFG SPLINE PRESSURE ANGLE IN DEG 30.0
FEAT SPECIAL FEATURES BB HUB END TAPERED,0.376 IN. TAPER LG,2.250 IN. DIA,SMALL END OF TAPER
BYZL FIRST STEP FACE LARGEST DIAMETER AND LOCATION 2.375 INCHES END ANY ACCEPTABLE
BYZN FIRST STEP LENGTH AND LOCATION 0.500 INCHES NOMINAL AA END
AXFH SPLINE LENGTH 2.250 INCHES NOMINAL
BYFH BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED ROLLER CHAIN
ABSC SPLINE MINOR DIAMETER 1.3750 INCHES MINIMUM AND 1.3775 INCHES MAXIMUM
ABHE OUTSIDE DIAMETER 3.915 INCHES MINIMUM AND 3.920 INCHES MAXIMUM
BYFJ ROLLER CHAIN PITCH TYPE FOR WHICH DESIGNED SINGLE PITCH
AXND COUNTERBORE FEATURE INCLUDED
BYFW HUB EXTERNAL KEYWAY NOT INCLUDED
CLYR HUB END OUTSIDE DIAMETER AND LOCATION 1.995 INCHES MINIMUM AA END AND 2.000 INCHES MAXIMUM AA END
BYFP ASA STANDARD CHAIN NUMBER 50
BYFL TEETH ROW QUANTITY 1
STYL STYLE DESIGNATOR PLAIN
AAWZ COUNTERBORE DEPTH 0.188 INCHES NOMINAL
MATL MATERIAL STEEL, QQ-S-681, CLASS 120-95
BYDZ PROTRUDING HUB CHARACTERISTIC STEPPED
BYFS BORE BEARING NOT INCLUDED
ASBP BORE TYPE INVOLUTE SPLINE
ABHP OVERALL LENGTH 2.438 INCHES NOMINAL
SURF SURFACE TREATMENT PHOSPHATE
BYZF DISTANCE FROM OUTSIDE FLANGE/RIM TO HUB END AND LOCATION 1.016 INCHES MINIMUM BB END AND 1.019 INCHES MAXIMUM BB END
BDYS COUNTERBORE LOCATION BB END
BYFQ HARDNESS RATING TEST METHOD NOT RATED
AAWY COUNTERBORE DIAMETER 1.995 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
BYZP SECOND STEP LENGTH AND LOCATION 0.578 INCHES HUB SIDE BETWEEN ARMS ANY ACCEPTABLE AND 0.581 INCHES ROPE ANY ACCEPTABLE
ABSA SPLINE QUANTITY 23
AAUJ SPLINE MAJOR DIAMETER 1.5500 INCHES MINIMUM AND 1.5612 INCHES MAXIMUM
AQPL FACE WIDTH 0.343 INCHES NOMINAL
Manufacturing Part Numbers (SKUs)
Part SKU Cage Status RNVC RNCC SADC DAC RNAAC
7748531 19204 A 2 3 1 BF
Manufacturers
Part SKU Cage Manufacturer Type Status
7748531 19204 ARMY UNITED STATES DEPARTMENT OF F A
FLIS Identification
PMIC ADPE Code CRITL Code DEMIL Code DEMIL INTG NIIN Asgt ESD HMIC ENAC Schedule-B INC
U X A 01/01/1 N 8483901000 0445
FLIS Management
MOE REC Rep Code Mgmt Ctl USC Phrase Code Phrase Statement
Demilitarization Codes & Management
DML PMI HMIC ADP CC ESDC
Miscellaneous Management
MOE (S_A) SOS AAC QUP UI SLC CIIC RC MCC SVC
Management Control Army
MATCAT 1 MATCAT 2 MATCAT 3 MATCAT 4 5 ARC
Freight
NMFC NMFC SUB UFC HMC LTL LCL WCC TCC SHC ADC ACC ASH NMF DESC
117020 X 59820 S S 593 Z 9 A V Z CHAIN AND SPROCKET DRIVES/WHEELS