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W50DX57 — GEAR,WORM WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

W50DX57: GEAR,WORM WHEEL.

The GEAR,WORM WHEEL is a the manufacturer industrial component. Key specifications include bore_style: W/ 2 KEYWAYS BOTH ENDS, pitch_diameter: 17.4570 INCHES NOMINAL IN, pressure_angle: 27.5000 DEGREES, teeth_quantity: 39, tooth_direction: RIGHT, face_nominal_width: 2.250 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-338-9573, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
W50DX57
NSN: 3020-00-338-9573
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
bore_styleW/ 2 KEYWAYS BOTH ENDS
pitch_diameter17.4570 INCHES NOMINAL IN
pressure_angle27.5000 DEGREES
teeth_quantity39
tooth_directionRIGHT
face_nominal_width2.250 INCHES IN
hub_style_designatorPLAIN FIRST END
nominal_outside_diameter18.5000 INCHES IN
mating_thread_lead_quantity2
nominal_distance_from_bore_center_to_keyway_bottom2.5625 INCHES BOTH ENDS IN
NSN3020-00-338-9573
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,WORM WHEEL TITLE COMPONENT PN W50DX57 MFR GEAR,WORM WHEEL
KEY FEATURES
•
TEETH QUANTITY: 39
•
TOOTH DIRECTION: RIGHT
•
BORE STYLE: W/ 2 KEYWAYS BOTH ENDS
•
PITCH DIAMETER: 17.4570 INCHES NOMINAL IN
•
HUB STYLE DESIGNATOR: PLAIN FIRST END
•
NOMINAL OUTSIDE DIAMETER: 18.5000 INCHES IN
•
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM: 2.5625 INCHES BOTH ENDS IN
•
PRESSURE ANGLE: 27.5000 DEGREES
TECHNICAL CHARACTERISTICS
TEETH QUANTITY39
TOOTH DIRECTIONRIGHT
BORE STYLEW/ 2 KEYWAYS BOTH ENDS
PITCH DIAMETER17.4570 INCHES NOMINAL IN
HUB STYLE DESIGNATORPLAIN FIRST END
NOMINAL OUTSIDE DIAMETER18.5000 INCHES IN
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM2.5625 INCHES BOTH ENDS IN
PRESSURE ANGLE27.5000 DEGREES
MATING THREAD LEAD QUANTITY2
FACE NOMINAL WIDTH2.250 INCHES IN
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
SUBSTITUTES & CROSS-REFERENCES 8
94401PC78Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
G2281PC78Reference document
Same NSN cross-reference
Reference document — Secondary reference
G6666PC78Reference document
Same NSN cross-reference
Reference document — Secondary reference
D2-7370-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
G2282PC78Reference document
Same NSN cross-reference
Reference document — Secondary reference
G6672PC78Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W50DX57?
W50DX57 is a GEAR,WORM WHEEL.
What parts can replace W50DX57?
There are 8 known substitutes for W50DX57: 94401PC78, G2281PC78, G6666PC78 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W50DX57?
W50DX57 is cataloged in the U.S. Government catalog under NSN 3020-00-338-9573. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.