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Technical Data Sheet
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319003 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
Opengear · TAPERED BEARING
PRODUCT OVERVIEW

319003: CONE AND ROLLERS,TAPERED ROLLER.

Classic pinout RJ45 to DB25M crossover to PC/DTE. Key specifications include special_features: APPL TO MANSFIELD SANITARY MARINE TOILET,MODEL 912-M28. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-554-0026, 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
319003
NSN: 3110-00-554-0026
NIINs: 005540026, 014200433
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 40152 — VME AMERICAS INC SUB OF VME GROUP N V (USA)
SPECIFICATIONS
special_featuresAPPL TO MANSFIELD SANITARY MARINE TOILET,MODEL 912-M28
NSN3110-00-554-0026
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 319003 · Opengear ⚠ 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
•
CONE CORNER RADIUS: 0.5000 INCHES NOMINAL IN
•
CONE WIDTH: 1.8750 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 13.0000 INCHES NOMINAL IN
•
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
CONE CORNER RADIUS0.5000 INCHES NOMINAL IN
CONE WIDTH1.8750 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS L SERIES
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER13.0000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
M5202042Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-B-187Reference document
Same NSN cross-reference
Reference document — Identification reference
425-0101-007Reference document
Same NSN cross-reference
Reference document — Secondary reference
851402Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 319003?
319003 is a CONE AND ROLLERS,TAPERED ROLLER manufactured by Opengear.
What parts can replace 319003?
There are 4 known substitutes for 319003: M5202042, FF-B-187, 425-0101-007 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 319003?
319003 is cataloged in the U.S. Government catalog under NSN 3110-00-554-0026. 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.