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Technical Data Sheet
PartsTable / COMPONENT / NP71921ESPC80
NP71921ESPC80 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 1.2500 INCHES NOMINAL IN, cone_width: 1.8125 INCHES NOMINAL IN, bore_diameter: 2.4375 INCHES NOMINAL IN, overall_width: 1.8750 INCHES NOMINAL IN, standout_width: 0.6250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-5799, 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
NP71921ESPC80
NSN: 3110-00-100-5799
FSC: 3110
CAGE: 70691 — CAPITOL GEARS INC
SPECIFICATIONS
materialSTEEL OVERALL
cup_width1.2500 INCHES NOMINAL IN
cone_width1.8125 INCHES NOMINAL IN
bore_diameter2.4375 INCHES NOMINAL IN
overall_width1.8750 INCHES NOMINAL IN
standout_width0.6250 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, STEEP ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter6.0000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-5799
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: NP71921ESPC80 · 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
•
CUP WIDTH: 1.2500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT BORE, STEEP ANGLE
•
STANDOUT WIDTH: 0.6250 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
BORE DIAMETER: 2.4375 INCHES NOMINAL IN
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
TECHNICAL CHARACTERISTICS (FLIS)
CUP WIDTH1.2500 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OVERALL WIDTH1.8750 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, STEEP ANGLE
STANDOUT WIDTH0.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
BORE DIAMETER2.4375 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER6.0000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
12912Interchangeable
interchangeable cross-reference
interchangeable
MODEL 131Interchangeable
interchangeable cross-reference
interchangeable
TLC801Interchangeable
interchangeable cross-reference
interchangeable
5X9180-9121Interchangeable
Same NIIN cross-reference
interchangeable
EC6701PCEC6725Interchangeable
Same NIIN cross-reference
interchangeable
9180AND9121Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NP71921ESPC80?
NP71921ESPC80 is a BEARING,ROLLER,TAPERED.
What parts can replace NP71921ESPC80?
There are 8 known substitutes for NP71921ESPC80: 12912, MODEL 131, TLC801 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NP71921ESPC80?
NP71921ESPC80 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-5799. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026