PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T5-ARelay,electromagnetic

Omega Laboratories Inc · NSN 5945-00-919-3221 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-919-3221 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-919-3221. Primary manufacturer part number: T5-A.
Features
  • Relay,electromagnetic — FSC 5945
  • Unthreaded Mounting Hole Diameter: 0.125 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Winding DC Resistance Rating: 250.0 OHMS NOMINAL SINGLE WINDING
  • Winding Quantity: 1
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Coil Quantity: 1
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-919-3221, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Omega Laboratories Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-919-3221
Primary Part NumberT5-A
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerOmega Laboratories Inc
StatusCANCELLED
Unthreaded Mounting Hole Diameter0.125 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Winding DC Resistance Rating250.0 OHMS NOMINAL SINGLE WINDING
Winding Quantity1
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Coil Quantity1
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Terminal Type and Quantity4 PIN ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage300.0 MILLIAMPERES DC RESISTIVE LOAD
Duty TypeCONTINUOUS
Center to Center Distance Between Mounting Facilities Parallel to Length0.870 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
7520-00-240-24117000052011 INTERCHANGEABLE
Dispenser,pressure Sensitive Adh
3m Company
5935-01-299-5003T5A INTERCHANGEABLE
Adapter,connector
Ted Manufacturing Corp Div Ted Manufacturing Corporation
Cross-Reference Index
Part NumberManufacturer
T5-A Omega Laboratories Inc (USA)
T5A Torr Laboratories Inc (USA)
H5-26-5V Te Connectivity Corporation (USA)
Related Parts
7520-00-240-2411INTERCHANGEABLE
DISPENSER,PRESSURE SENSITIVE ADH
7000052011
5935-01-299-5003INTERCHANGEABLE
ADAPTER,CONNECTOR
T5A

Frequently Asked Questions

What is NSN 5945-00-919-3221?

NSN 5945-00-919-3221 is a Relay,electromagnetic, manufactured by Omega Laboratories Inc, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-919-3221?

NSN 5945-00-919-3221 has 3 cross-referenced part numbers: T5-A (Omega Laboratories Inc), T5A (Torr Laboratories Inc), H5-26-5V (Te Connectivity Corporation).

What NSN replaces 5945-00-919-3221?

There are 2 known substitutes for 5945-00-919-3221: 7520-00-240-2411, 5935-01-299-5003. Verify interchangeability with system specifications before substitution.

What are the specifications of T5-A?

Key specifications for T5-A: Unthreaded Mounting Hole Diameter: 0.125 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Overall Width: 0.812 INCHES NOMINAL IN; Winding DC Resistance Rating: 250.0 OHMS NOMINAL SINGLE WINDING. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-919-3221 still in active supply?

NSN 5945-00-919-3221 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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