PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3856Gear,spur

Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. · NSN 3020-00-288-6450 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-288-6450 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-288-6450. Primary manufacturer part number: 3856.
Features
  • Gear,spur — FSC 3020
  • Pressure Angle: 20.0000 DEGREES
  • Pitch Diameter: 0.4000 INCHES NOMINAL IN
  • Teeth Quantity: 12
  • Tooth Form: STUB
  • Style Designator: HUBLESS
  • Body Style: PLAIN, SOLID
  • Material: COPPER ALLOY OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-288-6450, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-288-6450
Primary Part Number3856
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMeggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
StatusACTIVE
Pressure Angle20.0000 DEGREES
Pitch Diameter0.4000 INCHES NOMINAL IN
Teeth Quantity12
Tooth FormSTUB
Style DesignatorHUBLESS
Body StylePLAIN, SOLID
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6515-00-307-55963856 INTERCHANGEABLE
Stockings,anti-Embolism
Covidien Sales Llc Dba Covidien Sales
4510-00-318-82083856 INTERCHANGEABLE
Handle,water Tank
The Central Brass Manufacturing Company
4820-00-412-2356 INTERCHANGEABLE
Valve,check
5935-00-450-46473926 INTERCHANGEABLE
Connector,receptacle,electrical
Bryant Electric
2930-00-560-1952 INTERCHANGEABLE
Radiator Engine Coo
5220-00-588-59923856 INTERCHANGEABLE
Gage,turbine Rotor
Rolls-Royce Corporation
2945-00-595-29210S12223 INTERCHANGEABLE
Filter,fluid
Falls Filtration Technologies, Inc.
5950-00-645-776555C205 INTERCHANGEABLE
Transformer,audio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5998-00-827-2028 INTERCHANGEABLE
Circuit Card Assembly
5340-01-056-9349385-6 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
Cross-Reference Index
Part NumberManufacturer
3856 PRIMARY Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
3856 Howden Fluid Systems (USA)
Related Parts
6515-00-307-5596INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
3856
4510-00-318-8208INTERCHANGEABLE
HANDLE,WATER TANK
3856
4820-00-412-2356INTERCHANGEABLE
VALVE,CHECK
5935-00-450-4647INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
3926
2930-00-560-1952INTERCHANGEABLE
RADIATOR ENGINE COO
5220-00-588-5992INTERCHANGEABLE
GAGE,TURBINE ROTOR
3856
2945-00-595-2921INTERCHANGEABLE
FILTER,FLUID
0S12223
5950-00-645-7765INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
55C205
5998-00-827-2028INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5340-01-056-9349INTERCHANGEABLE
CLAMP,LOOP
385-6
5950-01-303-4767INTERCHANGEABLE
TRANSFORMER,POWER
3856
6635-01-311-8857INTERCHANGEABLE
TRANSDUCER,SUPERSONIC TEST
3856

Frequently Asked Questions

What is NSN 3020-00-288-6450?

NSN 3020-00-288-6450 is a Gear,spur, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-288-6450?

NSN 3020-00-288-6450 has 2 cross-referenced part numbers: 3856 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), 3856 (Howden Fluid Systems).

What NSN replaces 3020-00-288-6450?

There are 12 known substitutes for 3020-00-288-6450: 6515-00-307-5596, 4510-00-318-8208, 4820-00-412-2356 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3856?

Key specifications for 3856: Pressure Angle: 20.0000 DEGREES; Pitch Diameter: 0.4000 INCHES NOMINAL IN; Teeth Quantity: 12; Tooth Form: STUB. 7 total characteristics are documented in the Federal Logistics Information System.

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