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31520 — CUP,TAPERED ROLLER BEARING

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

31520: CUP,TAPERED ROLLER BEARING.

9 Way D Male to 9 Way D Female Fully moulded Also CGA/EGA monitor extension cable 10 year warranty. Key specifications include part_name_assigned_by_controlling_agency: BAG VEHICLE/BOAT. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0571, 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→ 31520
NSN: 3110-00-100-0571
NIINs: 001000571, 005175965, 009850956, 012605683, 012849732, 016030028
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyBAG VEHICLE/BOAT
NSN3110-00-100-0571
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 31520 · Aquabeads ⚠ 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: 3.0000 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 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 WIDTH0.9375 INCHES NOMINAL IN
OUTSIDE DIAMETER3.0000 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
SPECIAL FEATURESAXIAL DISTANCE BETWEEN CENTER OF CUP CONTACT LINE AND BEARING STABILITY POINT ON SHAFT AXIS 0.3100 IN. IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
663598Reference document
Same NSN cross-reference
Reference document — Secondary reference
22619Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
128242R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
663644Reference document
Same NSN cross-reference
Reference document — Secondary reference
86H4616Reference document
Same NSN cross-reference
Reference document — Secondary reference
X329247Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
Manufacturer release date (catalog record)2022-01-01
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31520?
31520 is a CUP,TAPERED ROLLER BEARING manufactured by Aquabeads. It is classified as a MRO (MRO_GENERAL).
What parts can replace 31520?
There are 9 known substitutes for 31520: 663598, 22619, 128242R1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31520?
31520 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0571. 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.