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77303 — STATOR,ENGINE GENERATOR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

77303: STATOR,ENGINE GENERATOR.

The STATOR,ENGINE GENERATOR is a the manufacturer industrial component. Key specifications include terminal_type: WIRE LEAD W/TERMINAL LUG, CONDUIT, NUT, special_features: WEAPON SYSTEM ESSENTIAL, end_item_identification: TRUCK, TRACTOR, M915/M916 (LET), criticality_code_justification: FEAT. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-155-6386, 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
77303
NSN: 3110-00-155-6386
NIINs: 001556386, 010826571, 012808214
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
terminal_typeWIRE LEAD W/TERMINAL LUG, CONDUIT, NUT
special_featuresWEAPON SYSTEM ESSENTIAL
terminal_quantity3
end_item_identificationTRUCK, TRACTOR, M915/M916 (LET)
criticality_code_justificationFEAT
NSN3110-00-155-6386
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 77303 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 47.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
SHIELD QUANTITY2
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH14.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER47.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SUBSTITUTES & CROSS-REFERENCES 4
77303X1Reference document
Same NSN cross-reference
Reference document — Secondary reference
77303X1CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
303WDDSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1303MFFReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77303?
77303 is a STATOR,ENGINE GENERATOR.
What parts can replace 77303?
There are 4 known substitutes for 77303: 77303X1, 77303X1C, 303WDD and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77303?
77303 is cataloged in the U.S. Government catalog under NSN 3110-00-155-6386. 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.