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4-193-53 — TRANSFORMER,POWER AUTOTRANSFORME

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

4-193-53: TRANSFORMER,POWER AUTOTRANSFORME.

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include material: STEEL OVERALL, cone_width: 1.2205 INCHES NOMINAL IN, bore_diameter: 3.0000 INCHES NOMINAL IN, special_features: SLOW BLOW TYPE FUSE AXIAL LEAD, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1400 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-198-2280, 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
MRO→ MRO_GENERAL→ 4-193-53
NSN: 3110-00-198-2280
NIINs: 001982280, 014702786, 015974364
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78880 — FLXIBLE CO THE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.2205 INCHES NOMINAL IN
bore_diameter3.0000 INCHES NOMINAL IN
special_featuresSLOW BLOW TYPE FUSE AXIAL LEAD
style_designatorNORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
end_item_identificationEND ITEM PLC TARAWA CLASS LHA
interruption_indicator_methodOPAQUE BODY
standard_tolerance_designationAFBMA CLASS 2
maximum_voltage_rating_in_volts125.0 AC AND 125.0 DC
continuous_current_rating_in_amps3.000
circuit_over-current_interruption_typeDELAY TIME
NSN3110-00-198-2280
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 4-193-53 · 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
CONE WIDTH: 1.2205 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 3.0000 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
CONE WIDTH1.2205 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER3.0000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 8
254-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
Z128-50Reference document
Same NSN cross-reference
Reference document — Secondary reference
1191989Reference document
Same NSN cross-reference
Reference document — Secondary reference
LJ0398Reference document
Same NSN cross-reference
Reference document — Secondary reference
6095SRReference document
Same NSN cross-reference
Reference document — Secondary reference
003145TReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4-193-53?
4-193-53 is a TRANSFORMER,POWER AUTOTRANSFORME. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4-193-53?
There are 8 known substitutes for 4-193-53: 254-6, Z128-50, 1191989 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-193-53?
4-193-53 is cataloged in the U.S. Government catalog under NSN 3110-00-198-2280. This indicates validated use in U.S. government and defense supply chains.
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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.