PartsTable TECHNICAL DATA SHEET
NSN 5945-01-240-2956Government record, cited

Relay, Solid State5945-01-240-2956

NSN 5945-01-240-2956 · NIIN 012402956 · Part number 4KK1
Dynalec Corporation · FSC 5945 — Relays and Solenoids · FSG 59 — Electrical and Electronic Equipment Components · CAGE 12763
Government record, cited
NSN 5945-01-240-2956 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-240-2956. Manufacturer of record part number: 4KK1.
Also searched as  5945-01-240-2956 · 5945012402956 · NIIN 012402956 · 01-240-2956 · FSC 5945 Relays and Solenoids · CAGE 12763 · 4KK1 · MP-120-D4
Nearby stock numbers  ·
Features
  • Relay,solid State — FSC 5945
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Dynalec Corporation
Identification
  • NSN: 5945-01-240-2956
  • NIIN: 012402956
  • FSC: 5945 — Relays and Solenoids
  • FSG: 59 — Electrical and Electronic Equipment Components
  • Primary part number: 4KK1
  • Manufacturer: Dynalec Corporation
General Description

The Relay,solid State, cataloged under National Stock Number 5945-01-240-2956, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Dynalec Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-240-2956
Primary Part Number4KK1
Item NameRelay,solid State
FSC / FSG5945 / 59 — Relays and Solenoids
ManufacturerDynalec Corporation
StatusACTIVE
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
MP-120-D4 Opto 22 (USA)
4KK1 PRIMARY Dynalec Corporation (USA)
Reference documents
ReferenceMeaning
4KK1 3/9 Design control — primary reference
The Electric Tachometer Corp.
No interchangeability data on file.
Other items in FSC 5945 — Relays and Solenoids
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5945-00-000-0093
5945-00-000-0093 · Item name not on file
5945-00-001-1891
5945-00-001-1891 · Item name not on file
5945-00-001-2622
PLATE,RELAY
5945-00-001-2795
RELAY,ELECTROMAGNETIC
5945-00-001-2806
RELAY,REED
5945-00-001-2938
5945-00-001-2938 · Item name not on file
5945-00-001-3015
RELAY ASSEMBLY
5945-00-001-3016
PROTECTOR,OVERLOAD

Frequently Asked Questions

What is NSN 5945-01-240-2956?

NSN 5945-01-240-2956 is a Relay,solid State, manufactured by Dynalec Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.

What part numbers are listed for NSN 5945-01-240-2956?

NSN 5945-01-240-2956 has 2 manufacturer part numbers on file: MP-120-D4 (Opto 22), 4KK1 (Dynalec Corporation).

What are the specifications of 4KK1?

Key specifications for 4KK1: Special Features: AC VOLTAGE 120.0 NOMINAL; CURRENT RATING 4.0 AMPS NOMINAL; OUTPUT VOLTAGE DROP 1.6 PEAK; PICK-UP VOLTAGE 3.0 VDC,DROP-OUT VOLTAGE 1.0 VDC; ZERO VOLTAGE TURN ON; OPERATING TEMPERATURE: MINUS 40 DEGREES CELCIUS TO 100 DEGREES CELCIUS; DIMENSIONS: LENGTH 1.680 IN. MINIMUM,1.720 IN. MAXIMUM; WIDTH 0.380 IN. MINIMUM,0.420 IN. MAXIMUM; HEIGHT 0.960 IN. MINIMUM,1.000 IN. MAXIMUM VDC. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5945-01-240-2956 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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