PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B24-1Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-725-8862 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-725-8862 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-725-8862. Primary manufacturer part number: B24-1.
Features
  • Bearing,sleeve — FSC 3120
  • Material: LUBRICANT LUBRICATION
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: COPPER ALLOY OVERALL
  • Body Outside Diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.1260 INCHES MINIMUM AND 0.1270 INCHES MAXIMUM IN
  • 2 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Lubricant Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-725-8862, 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 6 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-725-8862
Primary Part NumberB24-1
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
MaterialLUBRICANT LUBRICATION
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialCOPPER ALLOY OVERALL
Body Outside Diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
Body Inside Diameter0.1260 INCHES MINIMUM AND 0.1270 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6145-00-164-0155NE241030B INTERCHANGEABLE
Braid,wire
New England Wire Technologies Corp.
4710-00-602-0457 INTERCHANGEABLE
Pipe,metallic
2520-01-173-0064SD12-1 INTERCHANGEABLE
Piston Magnet,assem
Orange Research Inc
7025-01-486-5871B241 INTERCHANGEABLE
Interface Unit,data Transfer
Lockheed Martin Corporation Div Rms - Manassas
5305-01-504-041224-40 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Carrier Company, Llc
5305-01-509-430624-3 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Carrier Company, Llc
5305-01-509-436724-19 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Carrier Company, Llc
Cross-Reference Index
Part NumberManufacturer
B24-1 PRIMARY Altra Industrial Motion Corp. (USA)
63821-41 Raytheon Company Dba Raytheon (USA)
Related Parts
6145-00-164-0155INTERCHANGEABLE
BRAID,WIRE
NE241030B
4710-00-602-0457INTERCHANGEABLE
PIPE,METALLIC
2520-01-173-0064INTERCHANGEABLE
PISTON MAGNET,ASSEM
SD12-1
7025-01-486-5871INTERCHANGEABLE
INTERFACE UNIT,DATA TRANSFER
B241
5305-01-504-0412INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
24-40
5305-01-509-4306INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
24-3
5305-01-509-4367INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
24-19

Frequently Asked Questions

What is NSN 3120-00-725-8862?

NSN 3120-00-725-8862 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 3120-00-725-8862?

NSN 3120-00-725-8862 has 2 cross-referenced part numbers: B24-1 (Altra Industrial Motion Corp.), 63821-41 (Raytheon Company Dba Raytheon).

What NSN replaces 3120-00-725-8862?

There are 7 known substitutes for 3120-00-725-8862: 6145-00-164-0155, 4710-00-602-0457, 2520-01-173-0064 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B24-1?

Key specifications for B24-1: Material: LUBRICANT LUBRICATION; Corner Shape: SQUARE ALL CORNERS; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material: COPPER ALLOY OVERALL. 7 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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