PartsTable
Technical Data Sheet
50209-4 ✓ Verified by PartsTable
· MOTOR
WHAT YOU NEED TO KNOW
NEMA frame determines mounting bolt pattern TEFC for outdoor, ODP for dry indoor only
C-face vs foot-mount — different mounting
PRODUCT OVERVIEW

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6105-00-295-0217, 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
50209-4
NSN: 6105-00-295-0217
FSC: 6105
CAGE: 01843 — AMBAC INTERNATIONAL CORPORATION DIV AMBAC INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
nut_styleDOUBLE HEXAGON
nut_height0.448 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.496 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch24
NSN6105-00-295-0217
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 50209-4 · OEM ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
OVERALL DIAMETER: 1.3750 INCHES NOMINAL IN
FEATURES PROVIDED: SHAFT
CONSTRUCTION: SLOT WOUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER1.3750 INCHES NOMINAL IN
OVERALL LENGTH4.3437 INCHES NOMINAL IN
FEATURES PROVIDEDSHAFT
CONSTRUCTIONSLOT WOUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
502094Interchangeable
interchangeable cross-reference
interchangeable
502092Interchangeable
interchangeable cross-reference
interchangeable
502091Interchangeable
interchangeable cross-reference
interchangeable
L61A2925Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50209-4?
50209-4 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.
What parts can replace 50209-4?
There are 4 known substitutes for 50209-4: 502094, 502092, 502091 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50209-4?
50209-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6105-00-295-0217. This indicates validated use in U.S. government and defense supply chains.
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