PartsTable TECHNICAL DATA SHEET
NSN 6645-01-565-6973Government record, cited

Timer, Interval6645-01-565-6973

NSN 6645-01-565-6973 · NIIN 015656973 · Part number H3YN-21 24VDC
Omron Electronics Llc · FSC 6645 — Time Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 61964
Government record, cited
NSN 6645-01-565-6973 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-565-6973. Manufacturer of record part number: H3YN-21 24VDC.
Also searched as  6645-01-565-6973 · 6645015656973 · NIIN 015656973 · 01-565-6973 · FSC 6645 Time Measuring Instruments · CAGE 61964 · H3YN-21 24VDC
Nearby stock numbers  ·
Features
  • Timer,interval — FSC 6645
  • Current Type: DC
  • Voltage in Volts: 24.0
  • Timer Type: ELECTRICAL
  • Display Type: LIGHT EMITTING DIODE (L.E.D.).
  • 1 manufacturer part number on file
  • Manufacturer of record: Omron Electronics Llc
Identification
  • NSN: 6645-01-565-6973
  • NIIN: 015656973
  • FSC: 6645 — Time Measuring Instruments
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: H3YN-21 24VDC
  • Manufacturer: Omron Electronics Llc
General Description

The Timer,interval, cataloged under National Stock Number 6645-01-565-6973, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Omron Electronics Llc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-565-6973
Primary Part NumberH3YN-21 24VDC
Item NameTimer,interval
FSC / FSG6645 / 66 — Time Measuring Instruments
ManufacturerOmron Electronics Llc
StatusACTIVE
Current TypeDC
Voltage in Volts24.0
Timer TypeELECTRICAL
Display TypeLIGHT EMITTING DIODE (L.E.D.).
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
H3YN-21 24VDC PRIMARY Omron Electronics Llc (USA)
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 6645-01-565-6973?

NSN 6645-01-565-6973 is a Timer,interval, manufactured by Omron Electronics Llc, classified under FSC 6645, Time Measuring Instruments. Status: active.

What part numbers are listed for NSN 6645-01-565-6973?

NSN 6645-01-565-6973 has 1 manufacturer part number on file: H3YN-21 24VDC (Omron Electronics Llc).

What are the specifications of H3YN-21 24VDC?

Key specifications for H3YN-21 24VDC: Overall Height: 1.100 INCHES NOMINAL IN; Current Type: DC; Voltage in Volts: 24.0; Overall Width: 0.850 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 6645-01-565-6973 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.
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