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310028 — CUP,TAPERED ROLLER BEARING

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

310028: 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, body_width: 1.250 INCHES NOMINAL IN, body_height: 1.500 INCHES NOMINAL IN, body_length: 1.500 INCHES NOMINAL IN, overall_width: 1.2402 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-400-0696, 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→ 310028
NSN: 5340-00-400-0696
NIINs: 004000696, 006459200, 008064635, 008929468, 010757215
FSC: 5340 — Hardware, Commercial
CAGE: 0ZW37 — DANKA OFFICE IMAGING COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width1.250 INCHES NOMINAL IN
body_height1.500 INCHES NOMINAL IN
body_length1.500 INCHES NOMINAL IN
overall_width1.2402 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
outside_diameter140.00 MILLIMETERS NOMINAL MM
style_designatorNORMAL ANGLE
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
NSN5340-00-400-0696
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 310028 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness 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 1
2-310B028Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 310028?
310028 is a CUP,TAPERED ROLLER BEARING. It is classified as a MRO (MRO_GENERAL).
What parts can replace 310028?
There is 1 known substitute for 310028: 2-310B028. Substitute compatibility should be verified for your specific system.
What is the NSN for 310028?
310028 is cataloged in the U.S. Government catalog under NSN 5340-00-400-0696. 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.