PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MR-12Housing,bearing Unit

Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division · NSN 3130-01-303-6346 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-01-303-6346 — this item is cataloged by the U.S. Government under National Stock Number 3130-01-303-6346. Primary manufacturer part number: MR-12.
Features
  • Housing,bearing Unit — FSC 3130
  • 2 verified cross-references
  • Primary manufacturer: Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Housing,bearing Unit, cataloged under National Stock Number 3130-01-303-6346, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHousing,bearing Unit
FSC / FSG3130 — No Item Name Available (FSG 31)
ManufacturersCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (CAGE 88032); Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (CAGE 4P412)
Technical Specifications
ParameterValue
NSN3130-01-303-6346
Primary Part NumberMR-12
Item NameHousing,bearing Unit
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerIngersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-227-3237 INTERCHANGEABLE
Bearing,roller,needle
5330-00-864-5921MR1-2 INTERCHANGEABLE
Packing,preformed
Minnesota Rubber Co
5950-01-031-4643 INTERCHANGEABLE
Coil,radio Frequency
4220-01-041-26351077-00 INTERCHANGEABLE
Regulator,breathing Gas Pressure
Aqualung Usa, Inc
Cross-Reference Index
Part NumberManufacturer
MR-12 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
MR-12 PRIMARY Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (USA)
Related Parts
3110-00-227-3237INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
5330-00-864-5921INTERCHANGEABLE
PACKING,PREFORMED
MR1-2
5950-01-031-4643INTERCHANGEABLE
COIL,RADIO FREQUENCY
4220-01-041-2635INTERCHANGEABLE
REGULATOR,BREATHING GAS PRESSURE
1077-00

Frequently Asked Questions

What is NSN 3130-01-303-6346?

NSN 3130-01-303-6346 is a Housing,bearing Unit, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-01-303-6346?

NSN 3130-01-303-6346 has 2 cross-referenced part numbers: MR-12 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), MR-12 (Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division).

What NSN replaces 3130-01-303-6346?

There are 4 known substitutes for 3130-01-303-6346: 3110-00-227-3237, 5330-00-864-5921, 5950-01-031-4643 and 1 more. Verify interchangeability with system specifications before substitution.

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