PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81663Bearing,sleeve

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · NSN 3120-01-377-8918 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-377-8918 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-377-8918. Primary manufacturer part number: 81663.
Features
  • Bearing,sleeve — FSC 3120
  • 2 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-377-8918, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. This item has 2 commercial cross-references 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.

Catalog Facts
Item NameBearing,sleeve
FSC / FSG3120 — No Item Name Available (FSG 31)
ManufacturersEaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790)
Technical Specifications
ParameterValue
NSN3120-01-377-8918
Primary Part Number81663
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-01-532-2343 INTERCHANGEABLE
Wrench,box and Open End,combinat
Cross-Reference Index
Part NumberManufacturer
81438 ITEM 5 Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
81663 PRIMARY Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
Related Parts
5120-01-532-2343INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 3120-01-377-8918?

NSN 3120-01-377-8918 is a Bearing,sleeve, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-377-8918?

NSN 3120-01-377-8918 has 2 cross-referenced part numbers: 81438 ITEM 5 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 81663 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).

What NSN replaces 3120-01-377-8918?

There is 1 known substitute for 3120-01-377-8918: 5120-01-532-2343. Verify interchangeability with system specifications before substitution.

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