PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40063PHClock,marine,mechanical

The Chelsea Clock Llc · NSN 6645-01-229-2497 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-229-2497 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-229-2497. Primary manufacturer part number: 40063PH.
Features
  • Clock,marine,mechanical — FSC 6645
  • Minor Graduation Color: BLACK
  • Luminous Dial: NOT INCLUDED
  • Color: WHITE BACKGROUND
  • Major Graduation Color: BLACK
  • Scale Name: MINUTE AND SECOND AND 24 HOUR
  • Scale Range: +0.0 TO 24.0 HOUR AND +0.0 TO 60.0 MINUTE AND +0.0 TO 60.0 SECOND
  • Scale Quantity: 3
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Clock,marine,mechanical, cataloged under National Stock Number 6645-01-229-2497, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is The Chelsea Clock Llc. Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-229-2497
Primary Part Number40063PH
Item NameClock,marine,mechanical
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerThe Chelsea Clock Llc
StatusACTIVE
Minor Graduation ColorBLACK
Luminous DialNOT INCLUDED
ColorWHITE BACKGROUND
Major Graduation ColorBLACK
Scale NameMINUTE AND SECOND AND 24 HOUR
Scale Range+0.0 TO 24.0 HOUR AND +0.0 TO 60.0 MINUTE AND +0.0 TO 60.0 SECOND
Scale Quantity3
Dial Scale Marking ColorBLACK
Dial Outside Diameter8.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6645-00-224-8629 INTERCHANGEABLE
Clock,marine,mechanical
6645-00-224-8631 INTERCHANGEABLE
Clock,marine,mechanical
6645-00-224-8632 INTERCHANGEABLE
Clock,marine,mechanical
Cross-Reference Index
Part NumberManufacturer
MIL-C-1194 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
40063PH PRIMARY The Chelsea Clock Llc (USA)
Related Parts
6645-00-224-8629INTERCHANGEABLE
CLOCK,MARINE,MECHANICAL
6645-00-224-8631INTERCHANGEABLE
CLOCK,MARINE,MECHANICAL
6645-00-224-8632INTERCHANGEABLE
CLOCK,MARINE,MECHANICAL

Frequently Asked Questions

What is NSN 6645-01-229-2497?

NSN 6645-01-229-2497 is a Clock,marine,mechanical, manufactured by The Chelsea Clock Llc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-229-2497?

NSN 6645-01-229-2497 has 2 cross-referenced part numbers: MIL-C-1194 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 40063PH (The Chelsea Clock Llc).

What NSN replaces 6645-01-229-2497?

There are 3 known substitutes for 6645-01-229-2497: 6645-00-224-8629, 6645-00-224-8631, 6645-00-224-8632. Verify interchangeability with system specifications before substitution.

What are the specifications of 40063PH?

Key specifications for 40063PH: Minor Graduation Color: BLACK; Luminous Dial: NOT INCLUDED; Special Features: BATTERY POWERED; QUARTZ CRYSTAL; SOLID STATE; Color: WHITE BACKGROUND. 10 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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