PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS90386-8Indicator,elapsed T

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 6645-00-421-5287 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-421-5287 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-421-5287. Primary manufacturer part number: MS90386-8.
Features
  • Indicator,elapsed T — FSC 6645
  • 2 verified cross-references
  • Primary manufacturer: Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,elapsed T, cataloged under National Stock Number 6645-00-421-5287, 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. This item has 2 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.

Catalog Facts
Item NameIndicator,elapsed T
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M (CAGE 96906); Curtis Instruments, Inc. Dba Curtis Pmc Division (CAGE 18583)
Technical Specifications
ParameterValue
NSN6645-00-421-5287
Primary Part NumberMS90386-8
Item NameIndicator,elapsed T
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6645-00-092-5091 INTERCHANGEABLE
Meter,time Totalizing
6645-00-442-0475 INTERCHANGEABLE
Meter,time Totalizing
6645-00-454-0930 INTERCHANGEABLE
Meter,time Totalizing
6645-00-459-7719 INTERCHANGEABLE
Meter,time Totalizing
6645-00-496-9720 INTERCHANGEABLE
Meter,time Totalizing
6645-01-121-4584 INTERCHANGEABLE
Meter,time Totalizing
Cross-Reference Index
Part NumberManufacturer
MS90386-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
620NT Curtis Instruments, Inc. Dba Curtis Pmc Division (USA)
Related Parts
6645-00-092-5091INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-442-0475INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-454-0930INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-459-7719INTERCHANGEABLE
METER,TIME TOTALIZING
6645-00-496-9720INTERCHANGEABLE
METER,TIME TOTALIZING
6645-01-121-4584INTERCHANGEABLE
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-00-421-5287?

NSN 6645-00-421-5287 is a Indicator,elapsed T, 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 6645-00-421-5287?

NSN 6645-00-421-5287 has 2 cross-referenced part numbers: MS90386-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 620NT (Curtis Instruments, Inc. Dba Curtis Pmc Division).

What NSN replaces 6645-00-421-5287?

There are 6 known substitutes for 6645-00-421-5287: 6645-00-092-5091, 6645-00-442-0475, 6645-00-454-0930 and 3 more. Verify interchangeability with system specifications before substitution.

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