PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

802309-1Bearing,plain,spherical

H-B Instrument Co · NSN 3120-00-813-6346 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-813-6346 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-813-6346. Primary manufacturer part number: 802309-1.
Features
  • Bearing,plain,spherical — FSC 3120
  • Lubricant Accommodation Style: GROOVED CIRCULAR
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Surface Finish: 63.0 MICROINCHES SPHERICAL SURFACE
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Material: STEEL COMP 4340 OVERALL
  • Surface Finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Surface Groove Location and Quantity: 1 EXTERNAL AND 1 INTERNAL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 4340 Overall construction
General Description

The Bearing,plain,spherical, cataloged under National Stock Number 3120-00-813-6346, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is H-B Instrument Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3120-00-813-6346
Primary Part Number802309-1
Item NameBearing,plain,spherical
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerH-B Instrument Co
StatusACTIVE
Lubricant Accommodation StyleGROOVED CIRCULAR
Corner ShapeSQUARE INSIDE RIGHT CORNER
Surface Finish63.0 MICROINCHES SPHERICAL SURFACE
Corner ShapeSQUARE INSIDE LEFT CORNER
MaterialSTEEL COMP 4340 OVERALL
Surface Finish32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Surface Groove Location and Quantity1 EXTERNAL AND 1 INTERNAL
Surface TreatmentCHROMIUM SPHERICAL SURFACE
Body Inside Diameter1.2500 INCHES MINIMUM AND 1.2510 INCHES MAXIMUM IN
Spherical Body Diameter1.7480 INCHES MINIMUM AND 1.7490 INCHES MAXIMUM IN
Style DesignatorSOLID
Material Document and ClassificationAMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Antirotation/lubrication Type and Quantity8 HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3040-00-320-33538023-091 INTERCHANGEABLE
Arm,lever
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
5962-01-283-6193 INTERCHANGEABLE
Microcircuit,digital
3120-01-287-1619802309-1 INTERCHANGEABLE
Bearing,plain,spherical
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
802309-1 PRIMARY H-B Instrument Co (USA)
Related Parts
3040-00-320-3353INTERCHANGEABLE
ARM,LEVER
8023-091
5962-01-283-6193INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
3120-01-287-1619INTERCHANGEABLE
BEARING,PLAIN,SPHERICAL
802309-1

Frequently Asked Questions

What is NSN 3120-00-813-6346?

NSN 3120-00-813-6346 is a Bearing,plain,spherical, manufactured by H-B Instrument Co, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-813-6346?

NSN 3120-00-813-6346 has 1 cross-referenced part number: 802309-1 (H-B Instrument Co).

What NSN replaces 3120-00-813-6346?

There are 3 known substitutes for 3120-00-813-6346: 3040-00-320-3353, 5962-01-283-6193, 3120-01-287-1619. Verify interchangeability with system specifications before substitution.

What are the specifications of 802309-1?

Key specifications for 802309-1: Lubricant Accommodation Style: GROOVED CIRCULAR; Corner Shape: SQUARE INSIDE RIGHT CORNER; Surface Finish: 63.0 MICROINCHES SPHERICAL SURFACE; Corner Shape: SQUARE INSIDE LEFT CORNER. 14 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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