The Relay,electromagnetic, cataloged under National Stock Number 5945-01-148-6783, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bae Systems Integrated System Technologies Ltd. Government technical data includes 19 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-148-6783 |
| Primary Part Number | 3BK-507955 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Bae Systems Integrated System Technologies Ltd |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 TERMINAL SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Overall Diameter | 0.275 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 1.0 AMPERES DC RESISTIVE LOAD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 100.0 MILLIAMPERES DC LAMP LOAD |
| Duty Type | CONTINUOUS |
| Criticality Code Justification | FEAT |
| Winding DC Resistance Rating | 1.560 KILOHMS NOMINAL SINGLE WINDING |
| Features Provided | COIL VOLTAGE SUPPRESSION |
| Specification/standard Data | 81349-MIL-R-39016/15 GOVERNMENT SPECIFICATION |
| Time Delay | 0.004 SECONDS MAXIMUM FIXED RELEASE TIME |
| Time Delay | 0.002 SECONDS MAXIMUM FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Test Data Document | 81349-MIL-R-39016 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Terminal Type and Quantity | 8 WIRE LEAD ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| 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 |
|---|---|
| 3BK-507955 | Bae Systems Integrated System Technologies Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 3BK-507955 | 5/9 Secondary reference G E C Marconi Secure Systems Ltd |
| M39016/15-033L | 2/2 Government specification standardization U.S. Government activity |
| MIL-PRF-39016/15 | 4/1 Identification reference U.S. Government activity |
| MIL-R-39016/15 | 5/9 Secondary reference U.S. Government activity |
| JMAWD-26XL | 5/9 Secondary reference Hi-G Co Inc Sub of Nytronics Inc |
NSN 5945-01-148-6783 is a Relay,electromagnetic, manufactured by Bae Systems Integrated System Technologies Ltd, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-148-6783 has 1 manufacturer part number on file: 3BK-507955 (Bae Systems Integrated System Technologies Ltd).
Key specifications for 3BK-507955: Mounting Facility Type and Quantity: 1 TERMINAL SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Overall Diameter: 0.275 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN; Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES DC RESISTIVE LOAD. 19 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.