PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1646-6SA2Indicator,vertical Velocity

Mission Systems Davenport Inc. · NSN 6610-00-663-4155 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-00-663-4155 — this item is cataloged by the U.S. Government under National Stock Number 6610-00-663-4155. Primary manufacturer part number: 1646-6SA2.
Features
  • Indicator,vertical Velocity — FSC 6610
  • Mounting Facility Type and Quantity: 1 THREADED BEZEL
  • Pointer Finish: NONLUMINOUS SINGLE POINTER
  • Width: 3.250 INCHES NOMINAL IN
  • Color: WHITE POINTER OVERALL
  • Height: 3.250 INCHES NOMINAL IN
  • Depth: 5.312 INCHES NOMINAL IN
  • Mechanical Connection Quantity: 1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,vertical Velocity, cataloged under National Stock Number 6610-00-663-4155, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mission Systems Davenport Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6610-00-663-4155
Primary Part Number1646-6SA2
Item NameIndicator,vertical Velocity
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerMission Systems Davenport Inc.
StatusCANCELLED
Mounting Facility Type and Quantity1 THREADED BEZEL
Pointer FinishNONLUMINOUS SINGLE POINTER
Width3.250 INCHES NOMINAL IN
ColorWHITE POINTER OVERALL
Height3.250 INCHES NOMINAL IN
Depth5.312 INCHES NOMINAL IN
Mechanical Connection Quantity1
Reference Number Differentiating CharacteristicsW/NONLUMINORS DIAL MARKINGS
Accuracy Rating100.000 FEET PER MINUTE SINGLE INDICATOR SINGLE SCALE FT
Mechanical Connection Size1/8 IN. IN
Mechanical Connection TypeINTERNAL PIPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6610-00-360-2711 INTERCHANGEABLE
Indicator,vertical Velocity
6610-00-530-0028RC-60 INTERCHANGEABLE
Indicator,vertical Velocity
Aerosonic Llc
6610-00-530-1363D0-7163-04-052 INTERCHANGEABLE
Indicator,vertical Velocity
Elbitamerica, Inc.
6610-00-558-0480 INTERCHANGEABLE
Indicator,vertical Velocity
6610-00-663-4156716BU8-036 INTERCHANGEABLE
Indicator,vertical Velocity
Elbitamerica, Inc.
Cross-Reference Index
Part NumberManufacturer
1646-6SA2 Mission Systems Davenport Inc. (USA)
1646-6SA2 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
1646-6RA2 Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
MS28049-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
1646-6RA2 Mission Systems Davenport Inc. (USA)
Related Parts
6610-00-360-2711INTERCHANGEABLE
INDICATOR,VERTICAL VELOCITY
6610-00-530-0028INTERCHANGEABLE
INDICATOR,VERTICAL VELOCITY
RC-60
6610-00-530-1363INTERCHANGEABLE
INDICATOR,VERTICAL VELOCITY
D0-7163-04-052
6610-00-558-0480INTERCHANGEABLE
INDICATOR,VERTICAL VELOCITY
6610-00-663-4156INTERCHANGEABLE
INDICATOR,VERTICAL VELOCITY
716BU8-036

Frequently Asked Questions

What is NSN 6610-00-663-4155?

NSN 6610-00-663-4155 is a Indicator,vertical Velocity, manufactured by Mission Systems Davenport Inc., classified under FSC 6610 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6610-00-663-4155?

NSN 6610-00-663-4155 has 5 cross-referenced part numbers: 1646-6SA2 (Mission Systems Davenport Inc.), 1646-6SA2 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), 1646-6RA2 (Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems), MS28049-1 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1646-6RA2 (Mission Systems Davenport Inc.).

What NSN replaces 6610-00-663-4155?

There are 5 known substitutes for 6610-00-663-4155: 6610-00-360-2711, 6610-00-530-0028, 6610-00-530-1363 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1646-6SA2?

Key specifications for 1646-6SA2: Mounting Facility Type and Quantity: 1 THREADED BEZEL; Pointer Finish: NONLUMINOUS SINGLE POINTER; Width: 3.250 INCHES NOMINAL IN; Color: WHITE POINTER OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6610-00-663-4155 still in active supply?

NSN 6610-00-663-4155 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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