PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M3846-40Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-910-1667 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-910-1667 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-910-1667. Primary manufacturer part number: M3846-40.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 2.8750 INCHES NOMINAL IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Inside Diameter: 2.3750 INCHES NOMINAL IN
  • Material: COPPER ALLOY 932 OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • 3 verified cross-references
  • Primary manufacturer: Altra Industrial Motion Corp.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 932 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-910-1667, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN3120-00-910-1667
Primary Part NumberM3846-40
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Body Outside Diameter2.8750 INCHES NOMINAL IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Inside Diameter2.3750 INCHES NOMINAL IN
MaterialCOPPER ALLOY 932 OVERALL
Corner ShapeSQUARE ALL CORNERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5110-00-293-0460 INTERCHANGEABLE
Cutter,pipe
3120-00-448-670432820 INTERCHANGEABLE
Bearing,cam Rear
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4210-01-179-262032820 INTERCHANGEABLE
Bracket,fire Extinguisher
Tyco Fire Products Lp
3120-01-348-04633 2820 INTERCHANGEABLE
Bearing,sleeve
Krupp-Mak Co
6850-01-362-584332820 INTERCHANGEABLE
Etching Solution
Gravograph-New Hermes, Inc
5110-01-473-9765 INTERCHANGEABLE
Cutter,pipe
Cross-Reference Index
Part NumberManufacturer
M3846-40 PRIMARY Altra Industrial Motion Corp. (USA)
D28609PC7 Lockheed Corp Colby Crane and Mfg Co Lockheed Shipbuilding and Construction Co Div (USA)
32820 Altra Industrial Motion Corp. (USA)
Related Parts
5110-00-293-0460INTERCHANGEABLE
CUTTER,PIPE
3120-00-448-6704INTERCHANGEABLE
BEARING,CAM REAR
32820
4210-01-179-2620INTERCHANGEABLE
BRACKET,FIRE EXTINGUISHER
32820
3120-01-348-0463INTERCHANGEABLE
BEARING,SLEEVE
3 2820
6850-01-362-5843INTERCHANGEABLE
ETCHING SOLUTION
32820
5110-01-473-9765INTERCHANGEABLE
CUTTER,PIPE

Frequently Asked Questions

What is NSN 3120-00-910-1667?

NSN 3120-00-910-1667 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-910-1667?

NSN 3120-00-910-1667 has 3 cross-referenced part numbers: M3846-40 (Altra Industrial Motion Corp.), D28609PC7 (Lockheed Corp Colby Crane and Mfg Co Lockheed Shipbuilding and Construction Co Div), 32820 (Altra Industrial Motion Corp.).

What NSN replaces 3120-00-910-1667?

There are 6 known substitutes for 3120-00-910-1667: 5110-00-293-0460, 3120-00-448-6704, 4210-01-179-2620 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M3846-40?

Key specifications for M3846-40: Overall Length: 4.0000 INCHES NOMINAL IN; Body Outside Diameter: 2.8750 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Inside Diameter: 2.3750 INCHES NOMINAL IN. 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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