PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-1331Relay,resonant Reed

Douglas-Randall Inc · NSN 5945-00-943-9235 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-943-9235 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-943-9235. Primary manufacturer part number: 3-1331.
Features
  • Relay,resonant Reed — FSC 5945
  • Terminal Type and Quantity: 4 WIRE LEAD ALL FUNCTIONS
  • Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
  • Duty Type: CONTINUOUS
  • Resonant Reed Quantity: 1
  • Main Contact Maximum Voltage Rating in Volts: 300.0 AC
  • Winding DC Resistance Rating: 120.0 OHMS NOMINAL
  • Coil Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,resonant Reed, cataloged under National Stock Number 5945-00-943-9235, 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 Douglas-Randall Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-943-9235
Primary Part Number3-1331
Item NameRelay,resonant Reed
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerDouglas-Randall Inc
StatusACTIVE
Terminal Type and Quantity4 WIRE LEAD ALL FUNCTIONS
Nonpile-Up Main Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Duty TypeCONTINUOUS
Resonant Reed Quantity1
Main Contact Maximum Voltage Rating in Volts300.0 AC
Winding DC Resistance Rating120.0 OHMS NOMINAL
Coil Quantity1
Overall Diameter0.037 INCHES NOMINAL IN
Nominal Operating Current Rating and Type20.0 MILLIAMPERES DC ALL WINDINGS
Winding Quantity1
Frequency Tolerance in Percent-2.0 TO 2.0 SINGLE REED
Resonant Reed Frequency in Hertz60.0 SINGLE REED
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5136-00-189-31285136-00-189-3128 INTERCHANGEABLE
Die,rethreading
General Services Administration Federal Supply Service
9540-00-595-8555 INTERCHANGEABLE
Angle,structural
3110-00-769-14264TL68111 INTERCHANGEABLE
Cup,tapered Roller Bearing
Ntn Bearing Corporation of America
5985-00-834-47939159596 INTERCHANGEABLE
Coupler,directional
Us Army Aviation and Missile Command
5935-00-856-443531331 INTERCHANGEABLE
Adapter,connector
Itt Cannon Rf Products
5305-01-099-643811662344 INTERCHANGEABLE
Screw,cap,hexagon Head
U S Army Tank Automotive Command Amsta-Im-Mm
6550-01-153-3630231331 INTERCHANGEABLE
Sensitivity Discs,diagnostic
Becton, Dickinson and Co Dba Becton Dickinson & Co
5305-01-317-988931331 INTERCHANGEABLE
Screw,self-Drilling
Moog Inc. Dba Ampac-Isp Corp
6650-01-508-781731331 INTERCHANGEABLE
Mirror,optical Instrument
Cooper Surgical
Cross-Reference Index
Part NumberManufacturer
3-1331 Douglas-Randall Inc (USA)
Related Parts
5136-00-189-3128INTERCHANGEABLE
DIE,RETHREADING
5136-00-189-3128
9540-00-595-8555INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-769-1426INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
4TL68111
5985-00-834-4793INTERCHANGEABLE
COUPLER,DIRECTIONAL
9159596
5935-00-856-4435INTERCHANGEABLE
ADAPTER,CONNECTOR
31331
5305-01-099-6438INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
11662344
6550-01-153-3630INTERCHANGEABLE
SENSITIVITY DISCS,DIAGNOSTIC
231331
5305-01-317-9889INTERCHANGEABLE
SCREW,SELF-DRILLING
31331
6650-01-508-7817INTERCHANGEABLE
MIRROR,OPTICAL INSTRUMENT
31331

Frequently Asked Questions

What is NSN 5945-00-943-9235?

NSN 5945-00-943-9235 is a Relay,resonant Reed, manufactured by Douglas-Randall Inc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-943-9235?

NSN 5945-00-943-9235 has 1 cross-referenced part number: 3-1331 (Douglas-Randall Inc).

What NSN replaces 5945-00-943-9235?

There are 9 known substitutes for 5945-00-943-9235: 5136-00-189-3128, 9540-00-595-8555, 3110-00-769-1426 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-1331?

Key specifications for 3-1331: Terminal Type and Quantity: 4 WIRE LEAD ALL FUNCTIONS; Nonpile-Up Main Contact Arrangement: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION; Duty Type: CONTINUOUS; Resonant Reed Quantity: 1. 14 total characteristics are documented in the Federal Logistics Information System.

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