PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RGR391DX1RLBearing,shell

Siemens Energy, Inc. · NSN 3110-00-391-5863 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-391-5863 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-391-5863. Primary manufacturer part number: RGR391DX1RL.
Features
  • Bearing,shell — FSC 3110
  • 15 verified cross-references
  • Primary manufacturer: Siemens Energy, Inc.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,shell, cataloged under National Stock Number 3110-00-391-5863, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Siemens Energy, Inc.. This item has 15 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing,shell
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersRexnord Industries Llc (CAGE 21444); Westinghouse Electric Corp (CAGE 79500); Siemens Energy, Inc. (CAGE 16712); Usm Corp Sub of Emhart Industries Inc Farrel Co Div (CAGE 73057); Northrop Grumman Systems Corporation Div Marine Systems (CAGE 90099)
Technical Specifications
ParameterValue
NSN3110-00-391-5863
Primary Part NumberRGR391DX1RL
Item NameBearing,shell
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSiemens Energy, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-00-289-3306100R5-20 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
800373-152 Rexnord Industries Llc (USA)
G6863PC152-159 Westinghouse Electric Corp (USA)
94317PC152 Rexnord Industries Llc (USA)
G6863PC152 Siemens Energy, Inc. (USA)
RGR391DX1RL Westinghouse Electric Corp (USA)
1503203 Westinghouse Electric Corp (USA)
RGR391DX1RL PRIMARY Siemens Energy, Inc. (USA)
D2-7370-20 Usm Corp Sub of Emhart Industries Inc Farrel Co Div (USA)
G6853PC152-159 Westinghouse Electric Corp (USA)
RGR391DX1RL Usm Corp Sub of Emhart Industries Inc Farrel Co Div (USA)
RGR391DX1RL Rexnord Industries Llc (USA)
G6863-152 Usm Corp Sub of Emhart Industries Inc Farrel Co Div (USA)
1503203 Northrop Grumman Systems Corporation Div Marine Systems (USA)
G6853PC152 Siemens Energy, Inc. (USA)
G6853PC152 Usm Corp Sub of Emhart Industries Inc Farrel Co Div (USA)
Related Parts
4720-00-289-3306INTERCHANGEABLE
HOSE,NONMETALLIC
100R5-20

Frequently Asked Questions

What is NSN 3110-00-391-5863?

NSN 3110-00-391-5863 is a Bearing,shell, manufactured by Siemens Energy, Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-391-5863?

NSN 3110-00-391-5863 has 15 cross-referenced part numbers: 800373-152 (Rexnord Industries Llc), G6863PC152-159 (Westinghouse Electric Corp), 94317PC152 (Rexnord Industries Llc), G6863PC152 (Siemens Energy, Inc.), RGR391DX1RL (Westinghouse Electric Corp) and 10 more.

What NSN replaces 3110-00-391-5863?

There is 1 known substitute for 3110-00-391-5863: 4720-00-289-3306. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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