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731981 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

731981: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: RUBBER SYNTHETIC OVERALL, wall_thickness: 0.125 INCHES MINIMUM IN, working_length: 7.625 INCHES NOMINAL IN, inside_diameter: 1.500 INCHES NOMINAL IN, first_arm_length: 1.500 INCHES MINIMUM IN, style_designator: STRAIGHT CORRUGATED. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0676, 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
731981
NSN: 3110-00-100-0676
NIINs: 001000676, 004373898, 006722728, 014533551
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
wall_thickness0.125 INCHES MINIMUM IN
working_length7.625 INCHES NOMINAL IN
inside_diameter1.500 INCHES NOMINAL IN
first_arm_length1.500 INCHES MINIMUM IN
special_featuresHEAT SHALL WITHSTAND A - 40 DEG TEMPERATURE AND BE RESISTOR TO HEAT,CHEMICALS,OIL,WET ROT,OR ANY TYPE OF ANTI-FREEZE,RUST INHIBITORS,OR LIQUIDS USED IN ENGINE COOLANT SYSTEMS
style_designatorSTRAIGHT CORRUGATED
second_arm_length2.000 INCHES MAXIMUM IN
NSN3110-00-100-0676
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 731981 · 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
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
SUBSTITUTES & CROSS-REFERENCES 9
FF-B-187/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
687Reference document
Same NSN cross-reference
Reference document — Secondary reference
49486Reference document
Same NSN cross-reference
Reference document — Secondary reference
292037R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
570Reference document
Same NSN cross-reference
Reference document — Secondary reference
4B8395Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 731981?
731981 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 731981?
There are 9 known substitutes for 731981: FF-B-187/1, 687, 49486 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 731981?
731981 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0676. 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.