The Relay,electromagnetic, cataloged under National Stock Number 5945-00-681-0170, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Meggitt Safety Systems Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-681-0170 |
| Primary Part Number | T516-01-5-1 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) SINGLE MOUNTING FACILITY |
| Pile-Up Main Contact Form Arrangement | 1C |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Mounting Facility Pattern | RECTANGULAR SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 10.0 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Nominal Operating Current Rating and Type | 200.0 MILLIAMPERES DC SINGLE WINDING |
| Nominal Thread Size | 0.138 INCHES SINGLE MOUNTING FACILITY IN |
| Time Delay | 0.05 SECONDS NOMINAL FIXED RELEASE TIME |
| Time Delay | 1.50 SECONDS NOMINAL FIXED OPERATE TIME |
| Coil Quantity | 1 |
| Environmental Protection | HERMETIC |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 0.688 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Thread Class | 2A SINGLE MOUNTING FACILITY A |
| Thread Quantity Per Inch | 32 SINGLE MOUNTING FACILITY |
| Terminal Type and Quantity | 5 PIN ALL FUNCTIONS |
| 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 |
|---|---|
| 117SCE239-1 | Northrop Grumman Systems Corporation (USA) |
| 90553 | B.c. Systems Inc. Dba Bc Systems Inc (USA) |
| T516-015 | Meggitt Safety Systems Inc (USA) |
| T516-01-5-1 PRIMARY | Meggitt Safety Systems Inc (USA) |
| 351024 | B.c. Systems Inc. Dba Bc Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 351024 | 5/9 Secondary reference Tempo Instrument Inc Defense Electronics Div |
| 90553 | 5/9 Secondary reference Tempo Instrument Inc Defense Electronics Div |
NSN 5945-00-681-0170 is a Relay,electromagnetic, manufactured by Meggitt Safety Systems Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-681-0170 has 5 manufacturer part numbers on file: 117SCE239-1 (Northrop Grumman Systems Corporation), 90553 (B.c. Systems Inc. Dba Bc Systems Inc), T516-015 (Meggitt Safety Systems Inc), T516-01-5-1 (Meggitt Safety Systems Inc), 351024 (B.c. Systems Inc. Dba Bc Systems Inc).
6 possible matches (shared part number, not a government interchangeability claim): 5330-00-999-5463, 7045-01-114-4730, 4820-01-160-1600. Verify interchangeability with system specifications before substitution.
Key specifications for T516-01-5-1: Mounting Facility Type and Quantity: 4 THREADED STUD(S) SINGLE MOUNTING FACILITY; Overall Height: 2.870 INCHES MAXIMUM IN; Pile-Up Main Contact Form Arrangement: 1C; Main Contact Maximum Voltage Rating in Volts: 28.0 DC. 20 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.