PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

494Stopwatch

Timex Corp · NSN 6645-01-449-0785 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-449-0785 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-449-0785. Primary manufacturer part number: 494.
Features
  • Stopwatch — FSC 6645
  • Color: GRAY/GREY BACKGROUND
  • Maximum Running Time: 10.0 HOURS
  • Furnished Items: LUMINOUS DIAL
  • Dial Scale Marking Color: BLACK
  • Control Method: STEM PUSH BUTTON
  • Correct Time Reset Type: STEM
  • Display Type: LIGHT EMITTING DIODE (L.E.D.).
Applications
  • Applications requiring Plastic Case construction
General Description

The Stopwatch, cataloged under National Stock Number 6645-01-449-0785, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Timex Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-449-0785
Primary Part Number494
Item NameStopwatch
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerTimex Corp
StatusACTIVE
ColorGRAY/GREY BACKGROUND
Maximum Running Time10.0 HOURS
Furnished ItemsLUMINOUS DIAL
Dial Scale Marking ColorBLACK
Control MethodSTEM PUSH BUTTON
Correct Time Reset TypeSTEM
Display TypeLIGHT EMITTING DIODE (L.E.D.).
MaterialPLASTIC CASE
Face TypeOPEN
SubmersibilitySUBMERSIBLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-242-062455010103-000 INTERCHANGEABLE
Terminal,lug
Dne Technologies, Inc
2920-00-244-6588494 INTERCHANGEABLE
Starter,engine,electrical
Mack Trucks Inc Parts Opn
4730-00-254-62110716-MM5-BB02 INTERCHANGEABLE
Elbow,pipe to Tube
The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc
5120-00-302-5698494 INTERCHANGEABLE
Punch Set,drive Pin
Mayhew Steel Products Inc
5950-00-473-6060722836-5REVA INTERCHANGEABLE
Transformer,pulse
Raytheon Company Div Rmd Strategic
2940-00-767-7101216685 INTERCHANGEABLE
Air Cleaner,intake
Mcculloch Corp
3020-00-870-7272 INTERCHANGEABLE
Chain,silent
8030-00-926-21358030-00-926-2135 INTERCHANGEABLE
Filler,dent,metal Surface
General Services Administration Federal Supply Service
2530-01-034-30841669493C91 INTERCHANGEABLE
Brake Booster Assembly,master Cy
Navistar Intl Corp Truck Br Ohio Plant
5330-01-086-351749-4 INTERCHANGEABLE
Gasket
Rix Industries
Cross-Reference Index
Part NumberManufacturer
494 Timex Corp (USA)
69922 Timex Corp (USA)
Related Parts
5940-00-242-0624INTERCHANGEABLE
TERMINAL,LUG
55010103-000
2920-00-244-6588INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
494
4730-00-254-6211INTERCHANGEABLE
ELBOW,PIPE TO TUBE
0716-MM5-BB02
5120-00-302-5698INTERCHANGEABLE
PUNCH SET,DRIVE PIN
494
5950-00-473-6060INTERCHANGEABLE
TRANSFORMER,PULSE
722836-5REVA
2940-00-767-7101INTERCHANGEABLE
AIR CLEANER,INTAKE
216685
3020-00-870-7272INTERCHANGEABLE
CHAIN,SILENT
8030-00-926-2135INTERCHANGEABLE
FILLER,DENT,METAL SURFACE
8030-00-926-2135
2530-01-034-3084INTERCHANGEABLE
BRAKE BOOSTER ASSEMBLY,MASTER CY
1669493C91
5330-01-086-3517INTERCHANGEABLE
GASKET
49-4
4210-01-238-6934INTERCHANGEABLE
ADAPTOR,TANK
69922
2805-01-305-0059INTERCHANGEABLE
RING,PISTON
49-4

Frequently Asked Questions

What is NSN 6645-01-449-0785?

NSN 6645-01-449-0785 is a Stopwatch, manufactured by Timex Corp, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-449-0785?

NSN 6645-01-449-0785 has 2 cross-referenced part numbers: 494 (Timex Corp), 69922 (Timex Corp).

What NSN replaces 6645-01-449-0785?

There are 12 known substitutes for 6645-01-449-0785: 5940-00-242-0624, 2920-00-244-6588, 4730-00-254-6211 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 494?

Key specifications for 494: Color: GRAY/GREY BACKGROUND; Maximum Running Time: 10.0 HOURS; Furnished Items: LUMINOUS DIAL; Dial Scale Marking Color: BLACK. 11 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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