PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

870643700Bearing,sleeve

Duramax Marine, Llc · NSN 3120-01-538-6734 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-538-6734 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-538-6734. Primary manufacturer part number: 870643700.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 3.1250 INCHES NOMINAL IN
  • Body Inside Diameter: 2.5000 INCHES NOMINAL IN
  • Material: RUBBER OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • 2 verified cross-references
  • Primary manufacturer: Duramax Marine, Llc
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Rubber Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-538-6734, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Duramax Marine, Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-01-538-6734
Primary Part Number870643700
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDuramax Marine, Llc
StatusCANCELLED
Body Outside Diameter3.1250 INCHES NOMINAL IN
Body Inside Diameter2.5000 INCHES NOMINAL IN
MaterialRUBBER OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
6220-00-050-019130-0016 INTERCHANGEABLE
Light,navigational,aircraft
Grimes Aerospace Company
5950-00-062-5927 INTERCHANGEABLE
Transformer,radio Frequency
5360-00-291-5477D1-887 INTERCHANGEABLE
Spring,helical,compression
Kaydon Custom Filtration Corporation
2530-00-594-518875083R91 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5950-00-726-5504 INTERCHANGEABLE
Transformer,power
6650-00-926-7709300-016 INTERCHANGEABLE
Microscope,optical
Raytheon Company Dba Raytheon Co
5330-01-225-4857300-016 INTERCHANGEABLE
Seal,plain
Bal Seal Engineering, Inc.
3895-01-250-1615 INTERCHANGEABLE
Rainshield
4320-01-264-068730-0016 INTERCHANGEABLE
Pump,reciprocating
Gas Tech, Inc
1005-01-379-6329300016 INTERCHANGEABLE
Mandrel,sight Holder
Heckler & Koch, Inc.
Cross-Reference Index
Part NumberManufacturer
870643700 PRIMARY Duramax Marine, Llc (USA)
300.01-6 Us Workboats, Inc (USA)
Related Parts
6220-00-050-0191INTERCHANGEABLE
LIGHT,NAVIGATIONAL,AIRCRAFT
30-0016
5950-00-062-5927INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5360-00-291-5477INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
D1-887
2530-00-594-5188INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
75083R91
5950-00-726-5504INTERCHANGEABLE
TRANSFORMER,POWER
6650-00-926-7709INTERCHANGEABLE
MICROSCOPE,OPTICAL
300-016
5330-01-225-4857INTERCHANGEABLE
SEAL,PLAIN
300-016
3895-01-250-1615INTERCHANGEABLE
RAINSHIELD
4320-01-264-0687INTERCHANGEABLE
PUMP,RECIPROCATING
30-0016
1005-01-379-6329INTERCHANGEABLE
MANDREL,SIGHT HOLDER
300016
7021-01-507-3472INTERCHANGEABLE
COMPUTER SUBASSEMBLY
3000-16

Frequently Asked Questions

What is NSN 3120-01-538-6734?

NSN 3120-01-538-6734 is a Bearing,sleeve, manufactured by Duramax Marine, Llc, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-01-538-6734?

NSN 3120-01-538-6734 has 2 cross-referenced part numbers: 870643700 (Duramax Marine, Llc), 300.01-6 (Us Workboats, Inc).

What NSN replaces 3120-01-538-6734?

There are 11 known substitutes for 3120-01-538-6734: 6220-00-050-0191, 5950-00-062-5927, 5360-00-291-5477 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 870643700?

Key specifications for 870643700: Body Outside Diameter: 3.1250 INCHES NOMINAL IN; Body Inside Diameter: 2.5000 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: WATER LUBRICATED RUBBER SLEEVE BEARING; Material: RUBBER OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-01-538-6734 still in active supply?

NSN 3120-01-538-6734 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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