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25944W — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

25944W: CUP,TAPERED ROLLER BEARING.

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 0.8750 INCHES NOMINAL IN, outside_diameter: 3.7500 INCHES NOMINAL IN, special_features: AXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.3000 IN. IN, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0938 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-100-0574, 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
25944W
NSN: 3110-00-100-0574
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.8750 INCHES NOMINAL IN
outside_diameter3.7500 INCHES NOMINAL IN
special_featuresAXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.3000 IN. IN
style_designatorNORMAL ANGLE
backface_corner_radius0.0938 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
part_name_assigned_by_controlling_agencyBEARING CUP
NSN3110-00-100-0574
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 25944W · 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
•
OUTSIDE DIAMETER: 3.7500 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0938 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.8750 INCHES NOMINAL IN
OUTSIDE DIAMETER3.7500 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0938 INCHES NOMINAL IN
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.3000 IN. IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING CUP
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
4253255Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST966Reference document
Same NSN cross-reference
Reference document — Secondary reference
38821Reference document
Same NSN cross-reference
Reference document — Secondary reference
706880Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0210721Reference document
Same NSN cross-reference
Reference document — Secondary reference
926245Reference 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 25944W?
25944W is a CUP,TAPERED ROLLER BEARING.
What parts can replace 25944W?
There are 9 known substitutes for 25944W: 4253255, ST966, 38821 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25944W?
25944W is cataloged in the U.S. Government catalog under NSN 3110-00-100-0574. 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.