PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3009900666Meter,time Totalizing

Navcom Defense Electronics, Inc. · NSN 6645-00-803-6417 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-803-6417 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-803-6417. Primary manufacturer part number: 3009900666.
Features
  • Meter,time Totalizing — FSC 6645
  • Electrical Movement Type: SYNCHRONOUS MOTOR
  • Unit Type: MOUNTED
  • Smallest Increment Indicated: 0.10
  • Voltage Rating: 115.0 VOLTS NOMINAL
  • Flange Height: 1.750 INCHES NOMINAL IN
  • Background Color: WHITE
  • Body Depth: 2.578 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum or Steel Case construction
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-803-6417, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Navcom Defense Electronics, Inc.. Government technical data includes 24 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-803-6417
Primary Part Number3009900666
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerNavcom Defense Electronics, Inc.
StatusACTIVE
Electrical Movement TypeSYNCHRONOUS MOTOR
Unit TypeMOUNTED
Smallest Increment Indicated0.10
Voltage Rating115.0 VOLTS NOMINAL
Flange Height1.750 INCHES NOMINAL IN
Background ColorWHITE
Body Depth2.578 INCHES NOMINAL IN
MaterialALUMINUM OR STEEL CASE
Measurement UnitHOURS
Maximum Measurement9999.90
Movement TypeELECTRICAL
Indicator TypeDRUM REGISTER
Operating Frequency400.0 HERTZ NOMINAL
Marking ColorBLACK NUMERALS
Reset FeatureNOT PROVIDED
Hermetic ProtectionPROVIDED
Mounting ConfigurationFOUR 0.142 IN. DIA MTG HOLES ON 1.312 IN. BY 1.312 IN. MTG CENTERS IN
Mounting MethodFLUSH
Mounting TypePANEL
Terminal Quantity2
Mounting Flange Width1.750 INCHES NOMINAL IN
Terminal TypeSTUD
Current TypeAC
Body Diameter1.530 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6645-00-762-7452 INTERCHANGEABLE
Meter,time Totalizing
Cross-Reference Index
Part NumberManufacturer
3009900666 Navcom Defense Electronics, Inc. (USA)
MS28053-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6645-00-762-7452INTERCHANGEABLE
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-00-803-6417?

NSN 6645-00-803-6417 is a Meter,time Totalizing, manufactured by Navcom Defense Electronics, Inc., classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-803-6417?

NSN 6645-00-803-6417 has 2 cross-referenced part numbers: 3009900666 (Navcom Defense Electronics, Inc.), MS28053-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6645-00-803-6417?

There is 1 known substitute for 6645-00-803-6417: 6645-00-762-7452. Verify interchangeability with system specifications before substitution.

What are the specifications of 3009900666?

Key specifications for 3009900666: Electrical Movement Type: SYNCHRONOUS MOTOR; Unit Type: MOUNTED; Smallest Increment Indicated: 0.10; Voltage Rating: 115.0 VOLTS NOMINAL. 24 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com