PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC6499Clock,panel

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6645-00-084-1424 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-084-1424 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-084-1424. Primary manufacturer part number: MILC6499.
Features
  • Clock,panel — FSC 6645
  • Chime Mechanism: NOT INCLUDED
  • Nonmagnetic Characteristic: NOT INCLUDED
  • Maximum Running Time: 12.0 HOURS
  • Movement Type: MECHANICAL
  • Dial Quantity: 1
  • 4 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies 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 Clock,panel, cataloged under National Stock Number 6645-00-084-1424, 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 Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN6645-00-084-1424
Primary Part NumberMILC6499
Item NameClock,panel
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Chime MechanismNOT INCLUDED
Nonmagnetic CharacteristicNOT INCLUDED
Maximum Running Time12.0 HOURS
Movement TypeMECHANICAL
Dial Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
6645-00-150-6526400202 INTERCHANGEABLE
Clock,panel
Waltham Aircraft Clock Corp
6645-00-880-5927400252 INTERCHANGEABLE
Clock,panel
Waltham Aircraft Clock Corp
6645-00-950-8599 INTERCHANGEABLE
Clock,panel
6645-01-235-9465 INTERCHANGEABLE
Clock,panel
6645-01-383-7231A13A2 INTERCHANGEABLE
Clock,panel
Wakmann Watch Company Inc
6645-01-633-0303A-13A-2 INTERCHANGEABLE
Clock Paner
Waltham Aircraft Clock Corp
Cross-Reference Index
Part NumberManufacturer
MILC6499 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2130 Elgin National Industries Inc (USA)
MILC6499C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A13A2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6645-00-150-6526INTERCHANGEABLE
CLOCK,PANEL
400202
6645-00-880-5927INTERCHANGEABLE
CLOCK,PANEL
400252
6645-00-950-8599INTERCHANGEABLE
CLOCK,PANEL
6645-01-235-9465INTERCHANGEABLE
CLOCK,PANEL
6645-01-383-7231INTERCHANGEABLE
CLOCK,PANEL
A13A2
6645-01-633-0303INTERCHANGEABLE
CLOCK PANER
A-13A-2

Frequently Asked Questions

What is NSN 6645-00-084-1424?

NSN 6645-00-084-1424 is a Clock,panel, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6645 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6645-00-084-1424?

NSN 6645-00-084-1424 has 4 cross-referenced part numbers: MILC6499 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2130 (Elgin National Industries Inc), MILC6499C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A13A2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6645-00-084-1424?

There are 6 known substitutes for 6645-00-084-1424: 6645-00-150-6526, 6645-00-880-5927, 6645-00-950-8599 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC6499?

Key specifications for MILC6499: Chime Mechanism: NOT INCLUDED; Nonmagnetic Characteristic: NOT INCLUDED; Maximum Running Time: 12.0 HOURS; End Item Identification: GROUND SUPPORT SERIES. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6645-00-084-1424 still in active supply?

NSN 6645-00-084-1424 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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