Average Power Rating Per Channel: 3.4 WATTS OUTPUT
Frequency Per Channel: 10.0 MEGAHERTZ NOMINAL OPERATING CHANNEL
Signal Voltage Rating Per Channel: 12.000 VOLTS MINIMUM INPUT AND 35.000 VOLTS MAXIMUM INPUT
Basic Shape Style: RECTANGULAR OR SQUARE
External DC Operating Voltage in Volts: 12.0 MINIMUM SINGLE VOLTAGE AND 35.0 MAXIMUM SINGLE VOLTAGE
Identification
NSN: 6645-01-577-5891
NIIN: 015775891
FSC: 6645 — Time Measuring Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Generator,time Code, cataloged under National Stock Number 6645-01-577-5891, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
6645-01-577-5891
Item Name
Generator,time Code
FSC / FSG
6645 / 66 — Time Measuring Instruments
Status
ACTIVE
Circuit Construction Type
SOLID STATE
Average Power Rating Per Channel
3.4 WATTS OUTPUT
Frequency Per Channel
10.0 MEGAHERTZ NOMINAL OPERATING CHANNEL
Signal Voltage Rating Per Channel
12.000 VOLTS MINIMUM INPUT AND 35.000 VOLTS MAXIMUM INPUT
Basic Shape Style
RECTANGULAR OR SQUARE
External DC Operating Voltage in Volts
12.0 MINIMUM SINGLE VOLTAGE AND 35.0 MAXIMUM SINGLE VOLTAGE
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
20320.001
3/9Design control — primary reference
Spectrum Instruments, 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 6645-01-577-5891?
NSN 6645-01-577-5891 is a Generator,time Code, classified under FSC 6645, Time Measuring Instruments. Status: active.
What are the specifications of 6645-01-577-5891?
Key specifications for 6645-01-577-5891: Circuit Construction Type: SOLID STATE; Overall Height: 1.720 INCHES NOMINAL IN; Average Power Rating Per Channel: 3.4 WATTS OUTPUT; Frequency Per Channel: 10.0 MEGAHERTZ NOMINAL OPERATING CHANNEL. 6 specifications are documented in the U.S. Government catalog.
Is NSN 6645-01-577-5891 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.