PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51721Bearing,roller,cylindrical

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 3110-00-083-1282 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-083-1282 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-083-1282. Primary manufacturer part number: 51721.
Features
  • Bearing,roller,cylindrical — FSC 3110
  • Locating Feature: NONLOCATING
  • Surface Finish: GROUND
  • Bore Diameter: 2.4350 INCHES MINIMUM AND 2.4400 INCHES MAXIMUM IN
  • Overall Outside Diameter: 3.3420 INCHES MINIMUM AND 3.3430 INCHES MAXIMUM IN
  • 5 verified cross-references
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-083-1282, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-083-1282
Primary Part Number51721
Item NameBearing,roller,cylindrical
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusCANCELLED
Locating FeatureNONLOCATING
Surface FinishGROUND
Bore Diameter2.4350 INCHES MINIMUM AND 2.4400 INCHES MAXIMUM IN
Overall Outside Diameter3.3420 INCHES MINIMUM AND 3.3430 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5977-00-265-290010680 INTERCHANGEABLE
Brush,electrical Contact
Miraj Corp
5330-00-738-2106517-21 INTERCHANGEABLE
Gasket
Fl Industries Inc Pneumotive Div
5305-01-070-204251721 INTERCHANGEABLE
Screw,machine
Mcculloch Corp
Cross-Reference Index
Part NumberManufacturer
BR1171-1RW Mcgill Manufacturing Co, Inc (USA)
MCS1912-906 Regal Beloit America, Inc. Dba Rollway Bearing (USA)
51721 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
MCS1912-903 Regal Beloit America, Inc. Dba Rollway Bearing (USA)
51721 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
Related Parts
5977-00-265-2900INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
10680
5330-00-738-2106INTERCHANGEABLE
GASKET
517-21
5305-01-070-2042INTERCHANGEABLE
SCREW,MACHINE
51721

Frequently Asked Questions

What is NSN 3110-00-083-1282?

NSN 3110-00-083-1282 is a Bearing,roller,cylindrical, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-083-1282?

NSN 3110-00-083-1282 has 5 cross-referenced part numbers: BR1171-1RW (Mcgill Manufacturing Co, Inc), MCS1912-906 (Regal Beloit America, Inc. Dba Rollway Bearing), 51721 (Parker Hannifin Corporation Div Hydraulic Systems Division), MCS1912-903 (Regal Beloit America, Inc. Dba Rollway Bearing), 51721 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations).

What NSN replaces 3110-00-083-1282?

There are 3 known substitutes for 3110-00-083-1282: 5977-00-265-2900, 5330-00-738-2106, 5305-01-070-2042. Verify interchangeability with system specifications before substitution.

What are the specifications of 51721?

Key specifications for 51721: Overall Width: 0.5570 INCHES MINIMUM AND 0.5620 INCHES MAXIMUM IN; Locating Feature: NONLOCATING; Surface Finish: GROUND; Bore Diameter: 2.4350 INCHES MINIMUM AND 2.4400 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-083-1282 still in active supply?

NSN 3110-00-083-1282 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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