PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS90386Meter,time Totalizing

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 6645-00-547-2176 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-547-2176 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-547-2176. Primary manufacturer part number: MS90386.
Features
  • Meter,time Totalizing — FSC 6645
  • Terminal Type: SOLDER
  • Terminal Quantity: 2
  • Indicator Type: SCALE
  • Voltage Rating: 28.0 VOLTS NOMINAL
  • Inscription Color: WHITE
  • Hermetic Protection: NOT PROVIDED
  • Scale Range: +0.0 TO 5000.0 HOUR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-00-547-2176, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-547-2176
Primary Part NumberMS90386
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Terminal TypeSOLDER
Terminal Quantity2
Indicator TypeSCALE
Voltage Rating28.0 VOLTS NOMINAL
Inscription ColorWHITE
Hermetic ProtectionNOT PROVIDED
Scale Range+0.0 TO 5000.0 HOUR
Reset FeatureNOT PROVIDED
Mounting MethodFLUSH
Inscription Background ColorBLACK
Mounting ConfigurationTWO 0.125 IN. DIA MTG HOLES EQUALLY SPACED ON 1.320 IN. MTG CENTER IN
Scale Smallest Increment250.00 HOURS
Movement TypeELECTROCHEMICAL
Unit TypeMOUNTED
Mounting TypePANEL
Current TypeDC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6645-00-015-6018 INTERCHANGEABLE
Meter,time Totalizing
6645-00-115-5847 INTERCHANGEABLE
Meter,time Totalizing
6645-00-762-6538 INTERCHANGEABLE
Meter,time Totalizing
6645-00-854-1080 INTERCHANGEABLE
Meter,time Totalizing
6645-01-082-0518 INTERCHANGEABLE
Meter,time Totalizing
6645-01-113-6560 INTERCHANGEABLE
Meter,time Totalizing
Cross-Reference Index
Part NumberManufacturer
MS90386 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS90386-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
620-NB Curtis Instruments, Inc. Dba Curtis Pmc Division (USA)
15829106 Curtis Instruments, Inc. Dba Curtis Pmc Division (USA)
Related Parts
6645-00-015-6018INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-115-5847INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-762-6538INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-854-1080INTERCHANGEABLE
METER,TIME TOTALIZING
6645-01-082-0518INTERCHANGEABLE
METER,TIME TOTALIZING
6645-01-113-6560INTERCHANGEABLE
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-00-547-2176?

NSN 6645-00-547-2176 is a Meter,time Totalizing, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-547-2176?

NSN 6645-00-547-2176 has 4 cross-referenced part numbers: MS90386 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS90386-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 620-NB (Curtis Instruments, Inc. Dba Curtis Pmc Division), 15829106 (Curtis Instruments, Inc. Dba Curtis Pmc Division).

What NSN replaces 6645-00-547-2176?

There are 6 known substitutes for 6645-00-547-2176: 6645-00-015-6018, 6645-00-115-5847, 6645-00-762-6538 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS90386?

Key specifications for MS90386: Terminal Type: SOLDER; Terminal Quantity: 2; Indicator Type: SCALE; Voltage Rating: 28.0 VOLTS NOMINAL. 19 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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