PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F165-971-509Gear Box

Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric · NSN 4410-00-377-9972 · FSC 4410 · No Item Name Available
Verified by PartsTable
NSN 4410-00-377-9972 — this item is cataloged by the U.S. Government under National Stock Number 4410-00-377-9972. Primary manufacturer part number: F165-971-509.
Features
  • Gear Box — FSC 4410
  • 4 verified cross-references
  • Primary manufacturer: Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Box, cataloged under National Stock Number 4410-00-377-9972, is classified within Federal Supply Class 4410 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear Box
FSC / FSG4410 — No Item Name Available (FSG 44)
ManufacturersThomas C. Wilson, Inc. Dba Thomas C Wilson (CAGE 66042); Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (CAGE 11440); Combustion Engineering Inc (CAGE 80376)
Technical Specifications
ParameterValue
NSN4410-00-377-9972
Primary Part NumberF165-971-509
Item NameGear Box
FSC / FSG4410 / 44 — No Item Name Available
ManufacturerGe Steam Power Inc Dba Ge Steam Power, Inc Div General Electric
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-071-223773835 INTERCHANGEABLE
Screw,cap,hexagon Head
Stewart & Stevenson Power Products Llc
5310-00-285-9797D6-22 INTERCHANGEABLE
Washer,spring Tension
Roller Bearing Co of America, Inc Div Pic Design
3120-00-293-633731A7942 INTERCHANGEABLE
Bearing,sleeve
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5305-00-733-661699121885 INTERCHANGEABLE
Screw,wheel
Alfa Laval Inc
2990-01-005-436521885 INTERCHANGEABLE
Muffler,exhaust
Walker Mfg Co
5998-01-074-2485 INTERCHANGEABLE
Circuit Card Assembly
3010-01-221-0132404-55-1-10 PC 1891 INTERCHANGEABLE
Drive Unit,angle
Amec Foster Wheeler North America Corp. Dba Foster Wheeler
5977-01-289-27432-1885 INTERCHANGEABLE
Brush,electrical Contact
A. O. Smith Corporation Dba a O Smith Corp
5330-01-322-284921885 INTERCHANGEABLE
Gasket
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Cross-Reference Index
Part NumberManufacturer
21885 Thomas C. Wilson, Inc. Dba Thomas C Wilson (USA)
F165-971-509 PRIMARY Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA)
F165-971-509 Combustion Engineering Inc (USA)
E165-211PC1820 Combustion Engineering Inc (USA)
Related Parts
5305-00-071-2237INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
73835
5310-00-285-9797INTERCHANGEABLE
WASHER,SPRING TENSION
D6-22
3120-00-293-6337INTERCHANGEABLE
BEARING,SLEEVE
31A7942
5305-00-733-6616INTERCHANGEABLE
SCREW,WHEEL
99121885
2990-01-005-4365INTERCHANGEABLE
MUFFLER,EXHAUST
21885
5998-01-074-2485INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3010-01-221-0132INTERCHANGEABLE
DRIVE UNIT,ANGLE
404-55-1-10 PC 1891
5977-01-289-2743INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
2-1885
5330-01-322-2849INTERCHANGEABLE
GASKET
21885

Frequently Asked Questions

What is NSN 4410-00-377-9972?

NSN 4410-00-377-9972 is a Gear Box, manufactured by Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric, classified under FSC 4410 (No Item Name Available). Status: active.

What are the part numbers for NSN 4410-00-377-9972?

NSN 4410-00-377-9972 has 4 cross-referenced part numbers: 21885 (Thomas C. Wilson, Inc. Dba Thomas C Wilson), F165-971-509 (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric), F165-971-509 (Combustion Engineering Inc), E165-211PC1820 (Combustion Engineering Inc).

What NSN replaces 4410-00-377-9972?

There are 9 known substitutes for 4410-00-377-9972: 5305-00-071-2237, 5310-00-285-9797, 3120-00-293-6337 and 6 more. Verify interchangeability with system specifications before substitution.

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