The Relay,electromagnetic, cataloged under National Stock Number 5945-00-503-8805, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sigmation Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5945-00-503-8805 |
| Primary Part Number | SIB-611 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Sigmation Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 SLOTTED HOLE SINGLE MOUNTING FACILITY |
| 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 | 2.312 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Main Contact Load Current Rating at Maximum Rated Voltage | 5.5 AMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Time Delay | 35.00 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 | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 6 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Mounting Slot Width | 0.188 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| 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 |
|---|---|
| SIB-611 | Sigmation Inc (USA) |
| Reference | Meaning |
|---|---|
| 650-3424 | 5/9 Secondary reference Northern Telecom Inc Telecom Distribution Div |
| 8712811 | 3/2 Design control — primary reference U.S. Government activity |
| 9900025 | 5/9 Secondary reference Cessna Aircraft Company Dba Textron Aviation |
| 854-0001 | 5/9 Secondary reference Northern Telecom Inc Telecom Distribution Div |
NSN 5945-00-503-8805 is a Relay,electromagnetic, manufactured by Sigmation Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-503-8805 has 1 manufacturer part number on file: SIB-611 (Sigmation Inc).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-352-5178. Verify interchangeability with system specifications before substitution.
Key specifications for SIB-611: Mounting Facility Type and Quantity: 4 SLOTTED HOLE SINGLE MOUNTING FACILITY; Overall Height: 2.430 INCHES NOMINAL IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Mounting Facility Pattern: RECTANGULAR SINGLE MOUNTING FACILITY. 15 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.