PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SMB414518Bearing,sleeve

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 3120-00-897-6874 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-897-6874 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-897-6874. Primary manufacturer part number: SMB414518.
Features
  • Bearing,sleeve — FSC 3120
  • Surface Groove Location and Quantity: 1 INTERNAL
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Lubricant Accommodation Style: GROOVED CIRCULAR
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-897-6874, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-897-6874
Primary Part NumberSMB414518
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Surface Groove Location and Quantity1 INTERNAL
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Lubricant Accommodation StyleGROOVED CIRCULAR
MaterialCOPPER ALLOY OVERALL
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Body Inside Diameter0.2520 INCHES MINIMUM AND 0.2530 INCHES MAXIMUM IN
Body Outside Diameter0.5003 INCHES MINIMUM AND 0.5006 INCHES MAXIMUM IN
Flange Width0.0290 INCHES MINIMUM AND 0.0330 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Flange Outside Diameter0.5500 INCHES MINIMUM AND 0.5590 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-679-7951132-0678 INTERCHANGEABLE
Seal,plain Encased
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
3120008976874 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
SMB414518 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
5820008976874 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
807051 L3harris Cincinnati Electronics Corporation (USA)
Related Parts
5330-00-679-7951INTERCHANGEABLE
SEAL,PLAIN ENCASED
132-0678

Frequently Asked Questions

What is NSN 3120-00-897-6874?

NSN 3120-00-897-6874 is a Bearing,sleeve, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-897-6874?

NSN 3120-00-897-6874 has 4 cross-referenced part numbers: 3120008976874 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), SMB414518 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 5820008976874 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 807051 (L3harris Cincinnati Electronics Corporation).

What NSN replaces 3120-00-897-6874?

There is 1 known substitute for 3120-00-897-6874: 5330-00-679-7951. Verify interchangeability with system specifications before substitution.

What are the specifications of SMB414518?

Key specifications for SMB414518: Surface Groove Location and Quantity: 1 INTERNAL; Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER. 15 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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