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Technical Data Sheet
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181-305 — RESISTOR,FIXED,WIRE WOUND,INDUCT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

181-305: RESISTOR,FIXED,WIRE WOUND,INDUCT.

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include material: FIBER OVERALL, teeth_quantity: 60. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-103-8875, 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
181-305
NSN: 3110-01-103-8875
NIINs: 011038875, 012625273
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
materialFIBER OVERALL
teeth_quantity60
NSN3110-01-103-8875
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 181-305 · 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
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 140.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH33.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER140.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
SUBSTITUTES & CROSS-REFERENCES 2
6313-2RSReference document
Same NSN cross-reference
Reference document — Secondary reference
313SZZReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 181-305?
181-305 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 181-305?
There are 2 known substitutes for 181-305: 6313-2RS, 313SZZ. Substitute compatibility should be verified for your specific system.
What is the NSN for 181-305?
181-305 is cataloged in the U.S. Government catalog under NSN 3110-01-103-8875. 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.