The Relay,rotary, cataloged under National Stock Number 5945-01-123-8307, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-123-8307 |
| Primary Part Number | MDR-4091 |
| Item Name | Relay,rotary |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Winding Characteristic | SINGLE WOUND UNTAPPED |
| Contact Current Type | AC AND DC |
| Coil DC Resistance | 4.5 KILOHMS NOMINAL |
| Structural Design | NONPILE-UP |
| Contact Arrangement | 4PDT |
| Operating Current Rating | 20.0 MILLIAMPERES NOMINAL |
| Contact Terminal Quantity | 12 |
| Contact Maximum Rated Current | 10.0 AMPERES NOMINAL |
| Contact Maximum Voltage Rating in Volts | 125.0 |
| Contact Voltage Rating at Maximum Rated Current | 115.0 |
| Coil Terminal Quantity | 4 |
| Mounting Configuration | FOUR 0.196 IN. DIA MTG HOLES SPACED ON 2.125 IN. BY 2.125 IN. MTG CENTERS IN |
| AC Operating Voltage Rating in Volts | 440.0 NOMINAL |
| Contact Current Rating at Maximum Rated Voltage | 800.0 MILLIAMPERES RESISTIVE |
| Rotation Direction for Which Designed | CLOCKWISE |
| Coil Winding Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5945-01-123-8307 is a Relay,rotary, manufactured by Te Connectivity Corporation, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-123-8307 has 2 manufacturer part numbers on file: MDR-4091 (Te Connectivity Corporation), MDR-4091 (Te Connectivity Corporation).
Key specifications for MDR-4091: Winding Characteristic: SINGLE WOUND UNTAPPED; Contact Current Type: AC AND DC; Overall Height: 3.130 INCHES MAXIMUM IN; Coil DC Resistance: 4.5 KILOHMS NOMINAL. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.