PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1866Gear Train Assembly,indicator

Mission Systems Davenport Inc. · NSN 6685-00-486-8278 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-486-8278 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-486-8278. Primary manufacturer part number: 1866.
Features
  • Gear Train Assembly,indicator — FSC 6685
  • 1 verified cross-reference
  • Primary manufacturer: Mission Systems Davenport Inc.
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Train Assembly,indicator, cataloged under National Stock Number 6685-00-486-8278, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mission Systems Davenport Inc.. This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN6685-00-486-8278
Primary Part Number1866
Item NameGear Train Assembly,indicator
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-001-7973 INTERCHANGEABLE
Control,valve
5910-00-080-18900180-0045 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Agilent Technologies, Inc. Div Agilent Technologies Headquarters
5905-00-140-3170 INTERCHANGEABLE
Resistor Network,fixed,film
5330-00-173-3086H03-26 INTERCHANGEABLE
Gasket
Mako Compressors, Llc
5360-00-248-48131866 INTERCHANGEABLE
Spring,helical,compression
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5325-00-276-5999F51-1 INTERCHANGEABLE
Grommet,nonmetallic
Bae Systems Information and Electronic Systems Integration Inc.
5950-00-528-4423 INTERCHANGEABLE
Coil,radio Frequency
5365-00-720-9210S8154-71C010 INTERCHANGEABLE
Shim
Honeywell International Inc. Div Aerospace - Torrance
6145-00-806-7402 INTERCHANGEABLE
Wire,electrical
5315-00-874-70731866 INTERCHANGEABLE
Pin,cotter
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
1866 PRIMARY Mission Systems Davenport Inc. (USA)
Related Parts
6685-00-001-7973INTERCHANGEABLE
CONTROL,VALVE
5910-00-080-1890INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
0180-0045
5905-00-140-3170INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
5330-00-173-3086INTERCHANGEABLE
GASKET
H03-26
5360-00-248-4813INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1866
5325-00-276-5999INTERCHANGEABLE
GROMMET,NONMETALLIC
F51-1
5950-00-528-4423INTERCHANGEABLE
COIL,RADIO FREQUENCY
5365-00-720-9210INTERCHANGEABLE
SHIM
S8154-71C010
6145-00-806-7402INTERCHANGEABLE
WIRE,ELECTRICAL
5315-00-874-7073INTERCHANGEABLE
PIN,COTTER
1866
6145-00-889-0823INTERCHANGEABLE
WIRE,ELECTRICAL
1866
6240-00-924-7504INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 6685-00-486-8278?

NSN 6685-00-486-8278 is a Gear Train Assembly,indicator, manufactured by Mission Systems Davenport Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-486-8278?

NSN 6685-00-486-8278 has 1 cross-referenced part number: 1866 (Mission Systems Davenport Inc.).

What NSN replaces 6685-00-486-8278?

There are 12 known substitutes for 6685-00-486-8278: 6685-00-001-7973, 5910-00-080-1890, 5905-00-140-3170 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1866?

Key specifications for 1866: End Item Identification: INDICATOR,TEMPERATURE,PART NO. 1867. 1 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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