PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31121Gear,internal

Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 · NSN 3020-01-377-7455 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-377-7455 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-377-7455. Primary manufacturer part number: 31121.
Features
  • Gear,internal — FSC 3020
  • 3 verified cross-references
  • Primary manufacturer: Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,internal, cataloged under National Stock Number 3020-01-377-7455, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear,internal
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (CAGE 98991)
Technical Specifications
ParameterValue
NSN3020-01-377-7455
Primary Part Number31121
Item NameGear,internal
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerWorcester Controls Corp P O Box 2609 Cookeville Tn 385022609
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1630-00-050-2904 INTERCHANGEABLE
Wheel,landing Gear
4510-00-167-0409 INTERCHANGEABLE
Faucet,double
5315-00-222-71415315H23-000 INTERCHANGEABLE
Pin,straight,headless
Us Army Aviation and Missile Command
6730-00-396-3514 INTERCHANGEABLE
Leg,projector
2530-00-426-8370222708 INTERCHANGEABLE
Tank,pressure
Johnson Welded Products, Inc Dba J W P
5977-00-454-52291485-04 INTERCHANGEABLE
Holder,electrical Contact Brush
General Dynamics Motion Control Llc
2530-00-466-8924 INTERCHANGEABLE
Brake Shoe
5930-00-538-289517810 INTERCHANGEABLE
Switch,thermostatic
Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems
5985-00-598-46493112-1 INTERCHANGEABLE
Waveguide Assembly
General Microwave Corporation Div Kratos Microwave Electronics
5950-00-716-3777 INTERCHANGEABLE
Transformer Assembly
Cross-Reference Index
Part NumberManufacturer
31121 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
31121 PART NO. 17810 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
17810 Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609 (USA)
Related Parts
1630-00-050-2904INTERCHANGEABLE
WHEEL,LANDING GEAR
4510-00-167-0409INTERCHANGEABLE
FAUCET,DOUBLE
5315-00-222-7141INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315H23-000
6730-00-396-3514INTERCHANGEABLE
LEG,PROJECTOR
2530-00-426-8370INTERCHANGEABLE
TANK,PRESSURE
222708
5977-00-454-5229INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
1485-04
2530-00-466-8924INTERCHANGEABLE
BRAKE SHOE
5930-00-538-2895INTERCHANGEABLE
SWITCH,THERMOSTATIC
17810
5985-00-598-4649INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
3112-1
5950-00-716-3777INTERCHANGEABLE
TRANSFORMER ASSEMBLY
1630-00-764-4792INTERCHANGEABLE
WHEEL,LANDING GEAR
3020-00-858-0507INTERCHANGEABLE
GEAR,WORM WHEEL
31121

Frequently Asked Questions

What is NSN 3020-01-377-7455?

NSN 3020-01-377-7455 is a Gear,internal, manufactured by Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-377-7455?

NSN 3020-01-377-7455 has 3 cross-referenced part numbers: 31121 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), 31121 PART NO. 17810 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609), 17810 (Worcester Controls Corp P O Box 2609 Cookeville Tn 385022609).

What NSN replaces 3020-01-377-7455?

There are 12 known substitutes for 3020-01-377-7455: 1630-00-050-2904, 4510-00-167-0409, 5315-00-222-7141 and 9 more. Verify interchangeability with system specifications before substitution.

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