PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B48-3Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-618-2355 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-618-2355 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-618-2355. Primary manufacturer part number: B48-3.
Features
  • Bearing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Material: LUBRICANT LUBRICATION
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.5010 INCHES MINIMUM AND 0.5020 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 3120-00-618-2355, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-618-2355
Primary Part NumberB48-3
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
MaterialLUBRICANT LUBRICATION
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
Body Outside Diameter0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-303-1373MS21004-9 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5995-00-350-7698B-48-3 INTERCHANGEABLE
Lead,electrical
Fluke Electronics Corp
5307-00-538-60771A63153 INTERCHANGEABLE
Stud,plain
Fwd Seagrave Holdings Lp
Cross-Reference Index
Part NumberManufacturer
9062757 Us Army Aviation and Missile Command (USA)
B48-3 PRIMARY Altra Industrial Motion Corp. (USA)
Related Parts
5940-00-303-1373INTERCHANGEABLE
TERMINAL,LUG
MS21004-9
5995-00-350-7698INTERCHANGEABLE
LEAD,ELECTRICAL
B-48-3
5307-00-538-6077INTERCHANGEABLE
STUD,PLAIN
1A63153

Frequently Asked Questions

What is NSN 3120-00-618-2355?

NSN 3120-00-618-2355 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 3120-00-618-2355?

NSN 3120-00-618-2355 has 2 cross-referenced part numbers: 9062757 (Us Army Aviation and Missile Command), B48-3 (Altra Industrial Motion Corp.).

What NSN replaces 3120-00-618-2355?

There are 3 known substitutes for 3120-00-618-2355: 5940-00-303-1373, 5995-00-350-7698, 5307-00-538-6077. Verify interchangeability with system specifications before substitution.

What are the specifications of B48-3?

Key specifications for B48-3: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Material: LUBRICANT LUBRICATION; 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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