NSN (3020010250489) – NSN 3020-01-025-0489 Parts List

Item Name Gear Antibacklash Worm Wheel
Federal Supply Group (FSG) Mechanical Power Transmission Equipment
Federal Supply Class (FSC) 3020 Gear Pulley Sprocket and Transmission Chain
National Item Identification Number (NIIN) 01-025-0489 (010250489)
NCB Code USA (01)
Manufacturer L 3 Communications Westwood, Roller Bearing Company Of America
Part Number Manufacturer Item Name Cage Code RFQ
4256A404PC3 l 3 communications westwood gear antibacklash worm wheel 23905 RFQ
4256A424 l 3 communications westwood gear antibacklash worm wheel 23905 RFQ
Q13-35SPECIAL roller bearing company of america gear antibacklash worm wheel 00141 RFQ

Technical Characteristics of NSN 3020010250489

MRCCriteriaCharacteristic
ABSXATTACHMENT METHODCLAMP
AGJSPITCH DIAMETER1.4526 INCHES NOMINAL
AJLATEETH QUANTITY93
ALPNFACE TYPECONCAVE
ANTPBORE STYLEPLAIN BOTH ENDS
CWCDNOMINAL OUTSIDE DIAMETER1.484 INCHES
CWNMTOOTH DIRECTIONRIGHT
CWPLMATING THREAD LEAD QUANTITY2
CWPPPRESSURE ANGLE14.5000 DEGREES
CWPZHELIX ANGLE3.5625 DEGREES
CWQLNOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.219 INCHES FIRST END
CWRMFACE NOMINAL WIDTH0.188 INCHES
CWRSBORE NOMINAL DIAMETER0.188 INCHES BOTH ENDS
CWTRHUB STYLE DESIGNATORSPLIT FIRST END
CWTXHUB NOMINAL DIAMETER0.250 INCHES FIRST END
MATTMATERIALCOPPER ALLOY 464 BODY
MATTMATERIALSTEEL COMP 303 HUB
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE BODY
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB
SFTTSURFACE TREATMENTPASSIVATE HUB
STYLSTYLE DESIGNATORPROTRUDING HUB

Relevant Components for NSN - 3020-01-025-0489, 3020010250489
3010-00-761-2420 (3010007612420) 3040-01-185-6252 (3040011856252) 3010-00-274-3704 (3010002743704) 3040-01-243-1430 (3040012431430)
3020-00-010-6251 (3020000106251) 3040-01-200-3484 (3040012003484) 3020-00-794-7471 (3020007947471) 3040-00-970-9325 (3040009709325)
3020-00-064-7048 (3020000647048) 3020-01-067-2046 (3020010672046) 3010-01-661-5046 (3010016615046) 3030-01-595-3826 (3030015953826)

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