PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RSS9Bearing,plain,self-Aligning

Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc · NSN 3120-00-415-1321 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-415-1321 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-415-1321. Primary manufacturer part number: RSS9.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Outer Member Width: 0.4370 INCHES NOMINAL IN
  • Lubrication Feature: GROOVE EXTERNAL OUTER MEMBER
  • Material: STEEL COMP 410 OUTER RACE MEMBER
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
  • Hardness Rating: 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER
  • Bore Diameter: 0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
  • Hardness Rating: 36.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 410 Outer Race Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-415-1321, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc. Government technical data includes 14 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-415-1321
Primary Part NumberRSS9
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRadial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc
StatusACTIVE
Outer Member Width0.4370 INCHES NOMINAL IN
Lubrication FeatureGROOVE EXTERNAL OUTER MEMBER
MaterialSTEEL COMP 410 OUTER RACE MEMBER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
Hardness Rating57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER
Bore Diameter0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
Hardness Rating36.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
Surface TreatmentCHROMIUM INNER MEMBER
Style DesignatorWITHOUT INSERT OR LINER WITH STAKING GROOVE
MaterialSTEEL COMP E52100 INNER MEMBER
Inner Member Width0.5570 INCHES MINIMUM AND 0.5620 INCHES MAXIMUM IN
Outer Member Outside Diameter1.0932 INCHES MINIMUM AND 1.0937 INCHES MAXIMUM IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
Static Radial Load Rating30000 POUNDS LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5975-00-280-7187480 INTERCHANGEABLE
Cover,junction Box
Ni Industries Inc Bowers Mfg Co Div
Cross-Reference Index
Part NumberManufacturer
RSS9 PRIMARY Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc (USA)
Related Parts
5975-00-280-7187INTERCHANGEABLE
COVER,JUNCTION BOX
480

Frequently Asked Questions

What is NSN 3120-00-415-1321?

NSN 3120-00-415-1321 is a Bearing,plain,self-Aligning, manufactured by Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-415-1321?

NSN 3120-00-415-1321 has 1 cross-referenced part number: RSS9 (Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc).

What NSN replaces 3120-00-415-1321?

There is 1 known substitute for 3120-00-415-1321: 5975-00-280-7187. Verify interchangeability with system specifications before substitution.

What are the specifications of RSS9?

Key specifications for RSS9: Outer Member Width: 0.4370 INCHES NOMINAL IN; Lubrication Feature: GROOVE EXTERNAL OUTER MEMBER; Material: STEEL COMP 410 OUTER RACE MEMBER; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER. 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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