The Relay,electromagnetic, cataloged under National Stock Number 5945-00-901-1528, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ampex Data Systems Corporation Dba Ampex Intelligent Systems. Government technical data includes 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-901-1528 |
| Primary Part Number | 020-133 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Ampex Data Systems Corporation Dba Ampex Intelligent Systems |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED STUD(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 120.0 AC AND 30.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Precious Material | SILVER |
| Main Contact Load Current Rating at Maximum Rated Voltage | 3.0 AMPERES AC AND 3.0 AMPERES DC RESISTIVE LOAD |
| Thread Length | 0.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Winding DC Resistance Rating | 11.0 KILOHMS NOMINAL SINGLE WINDING |
| Thread Direction | RIGHT-HAND SINGLE MOUNTING FACILITY |
| Nominal Thread Size | 0.099 INCHES SINGLE MOUNTING FACILITY IN |
| Time Delay | 0.006 SECONDS NOMINAL FIXED RELEASE TIME |
| Time Delay | 0.013 SECONDS NOMINAL FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Environmental Protection | DUSTPROOF |
| Precious Material and Location | CONTACTS SILVER |
| Cubic Measure | 1.518 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 110.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Thread Quantity Per Inch | 48 SINGLE MOUNTING FACILITY |
| Material | PLASTIC CASE |
| Material | SILVER CONTACT |
| Energizing Element Power Rating | 900.0 MILLIWATTS |
| Terminal Type and Quantity | 14 TAB, SOLDER LUG ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 020-133 | Ampex Data Systems Corporation Dba Ampex Intelligent Systems (USA) |
| Reference | Meaning |
|---|---|
| KHP17D12-110V | 3/9 Design control — primary reference Te Connectivity Corporation |
| 020-133 | 5/9 Secondary reference U.S. Government activity |
NSN 5945-00-901-1528 is a Relay,electromagnetic, manufactured by Ampex Data Systems Corporation Dba Ampex Intelligent Systems, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-901-1528 has 1 manufacturer part number on file: 020-133 (Ampex Data Systems Corporation Dba Ampex Intelligent Systems).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-494-4281. Verify interchangeability with system specifications before substitution.
Key specifications for 020-133: Mounting Facility Type and Quantity: 1 THREADED STUD(S) SINGLE MOUNTING FACILITY; Overall Height: 1.593 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 120.0 AC AND 30.0 DC; Fragility Factor: MODERATELY RUGGED. 27 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.