External AC Operating Voltage in Volts: 90.0 MINIMUM SINGLE VOLTAGE AND 260.0 MAXIMUM SINGLE VOLTAGE
Installation Design: MODULE AND PORTABLE
Identification
NSN: 6645-01-600-5653
NIIN: 016005653
FSC: 6645 — Time Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Generator,time Code, cataloged under National Stock Number 6645-01-600-5653, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6645-01-600-5653
Item Name
Generator,time Code
FSC / FSG
6645 / 66 — Time Measuring Instruments
Status
ACTIVE
Circuit Construction Type
SOLID STATE
Basic Shape Style
RECTANGULAR OR SQUARE
External AC Operating Voltage in Volts
90.0 MINIMUM SINGLE VOLTAGE AND 260.0 MAXIMUM SINGLE VOLTAGE
Installation Design
MODULE AND PORTABLE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
XLI
3/9Design control — primary reference
Symmetricom Inc.
No interchangeability data on file.
Other items in FSC 6645 — Time Measuring Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6645-00-001-1256
6645-00-001-1256 · Item name not on file
6645-00-001-4498
6645-00-001-4498 · Item name not on file
6645-00-001-4584
6645-00-001-4584 · Item name not on file
6645-00-001-9400
METER,TIME TOTALIZING
6645-00-003-0327
6645-00-003-0327 · Item name not on file
6645-00-003-0328
6645-00-003-0328 · Item name not on file
6645-00-003-0337
6645-00-003-0337 · Item name not on file
6645-00-003-0338
METER,TIME TOTALIZING
Frequently Asked Questions
What is NSN 6645-01-600-5653?
NSN 6645-01-600-5653 is a Generator,time Code, classified under FSC 6645, Time Measuring Instruments. Status: active.
What are the specifications of 6645-01-600-5653?
Key specifications for 6645-01-600-5653: Circuit Construction Type: SOLID STATE; Overall Height: 1.750 INCHES NOMINAL IN; Overall Length: 17.100 INCHES NOMINAL IN; Overall Width: 15.350 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 6645-01-600-5653 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.