PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

68B458001-101Bearing,sleeve

Roller Bearing Company of America, Inc. · NSN 3120-00-305-3551 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-305-3551 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-305-3551. Primary manufacturer part number: 68B458001-101.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 4.2310 INCHES MINIMUM AND 4.2410 INCHES MAXIMUM IN
  • Material: ALUMINUM ALLOY OUTER LAYER
  • Material Document and Classification: QQ-A-225-9 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200-11 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
  • Material: PLASTIC INNER LAYER
  • Body Inside Diameter: 3.5000 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN
  • 9 verified cross-references
  • Primary manufacturer: Roller Bearing Company of America, Inc.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Aluminum Alloy Outer Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-305-3551, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Roller Bearing Company of America, Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-305-3551
Primary Part Number68B458001-101
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRoller Bearing Company of America, Inc.
StatusACTIVE
Body Outside Diameter4.2310 INCHES MINIMUM AND 4.2410 INCHES MAXIMUM IN
MaterialALUMINUM ALLOY OUTER LAYER
Material Document and ClassificationQQ-A-225-9 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200-11 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER
MaterialPLASTIC INNER LAYER
Body Inside Diameter3.5000 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2805-00-987-2767911-229 INTERCHANGEABLE
Crankshaft,engine
Dresser, Llc
4920-01-296-153091110 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
9330-01-372-3355 INTERCHANGEABLE
Molding,plastic
5120-01-652-477591110 INTERCHANGEABLE
Key,socket Head Screw
Eklind Tool Co
8105-01-694-703891110 INTERCHANGEABLE
Bag,tools and Spare Parts
Tifco Industries, Inc. Dba Tifco Industries Inc
9150-01-728-611691110 INTERCHANGEABLE
Grease,utility
Synco Chemical Corporation Dba Synco Chemical Corp
Cross-Reference Index
Part NumberManufacturer
KDJ56-6 Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
68B458001-101 PRIMARY Roller Bearing Company of America, Inc. (USA)
68B458001-101 The Boeing Company Div Defense (USA)
91110 Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
68B458001-101 PRIMARY Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
68B458001-101 PRIMARY Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
68B458001-101 PRIMARY Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA)
68B458001-101 PRIMARY Machine Specialties, Llc (USA)
HSPR56-90MD Roller Bearing Company of America, Inc. (USA)
Related Parts
2805-00-987-2767INTERCHANGEABLE
CRANKSHAFT,ENGINE
911-229
4920-01-296-1530INTERCHANGEABLE
TEST PROGRAM SET
91110
9330-01-372-3355INTERCHANGEABLE
MOLDING,PLASTIC
5120-01-652-4775INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
91110
8105-01-694-7038INTERCHANGEABLE
BAG,TOOLS AND SPARE PARTS
91110
9150-01-728-6116INTERCHANGEABLE
GREASE,UTILITY
91110

Frequently Asked Questions

What is NSN 3120-00-305-3551?

NSN 3120-00-305-3551 is a Bearing,sleeve, manufactured by Roller Bearing Company of America, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-305-3551?

NSN 3120-00-305-3551 has 9 cross-referenced part numbers: KDJ56-6 (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), 68B458001-101 (Roller Bearing Company of America, Inc.), 68B458001-101 (The Boeing Company Div Defense), 91110 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), 68B458001-101 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics) and 4 more.

What NSN replaces 3120-00-305-3551?

There are 6 known substitutes for 3120-00-305-3551: 2805-00-987-2767, 4920-01-296-1530, 9330-01-372-3355 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 68B458001-101?

Key specifications for 68B458001-101: Body Outside Diameter: 4.2310 INCHES MINIMUM AND 4.2410 INCHES MAXIMUM IN; Material: ALUMINUM ALLOY OUTER LAYER; Material Document and Classification: QQ-A-225-9 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200-11 FED SPEC SINGLE MATERIAL RESPONSE OUTER LAYER; Material: PLASTIC INNER LAYER. 6 total characteristics are documented in the Federal Logistics Information System.

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