The Relay,rotary, cataloged under National Stock Number 5945-01-063-8180, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-063-8180 |
| Primary Part Number | KFB431B |
| Item Name | Relay,rotary |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc |
| Status | ACTIVE |
| Winding Characteristic | SINGLE WOUND UNTAPPED |
| Contact Current Type | AC AND DC |
| Coil DC Resistance | 6.5 KILOHMS NOMINAL |
| Structural Design | NONPILE-UP |
| DC Operating Voltage Rating in Volts | 120.0 NOMINAL |
| Contact Arrangement | 4PDT |
| Contact Terminal Quantity | 12 |
| Contact Maximum Rated Current | 5.0 AMPERES RESISTIVE |
| Contact Maximum Voltage Rating in Volts | 120.0 |
| Contact Voltage Rating at Maximum Rated Current | 30.0 |
| Coil Terminal Quantity | 2 |
| Environmental Protection | HERMETICALLY SEALED |
| Mounting Configuration | TWO 0.156 IN. DIA MTG HOLES SPACED 1.437 IN. C TO C IN |
| Pull-in Current | 10.0 MILLIAMPERES MAXIMUM |
| Contact Current Rating at Maximum Rated Voltage | 2.0 AMPERES RESISTIVE |
| Rotation Direction for Which Designed | CLOCKWISE |
| Coil Winding Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| KFB431B PRIMARY | Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 4AS43G | 5/9 Secondary reference U.S. Government activity |
| L02523 | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
NSN 5945-01-063-8180 is a Relay,rotary, manufactured by Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-063-8180 has 1 manufacturer part number on file: KFB431B (Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc).
Key specifications for KFB431B: Winding Characteristic: SINGLE WOUND UNTAPPED; Contact Current Type: AC AND DC; Overall Height: 1.750 INCHES NOMINAL IN; Coil DC Resistance: 6.5 KILOHMS NOMINAL. 17 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.