The Switching Unit,power Transfer, cataloged under National Stock Number 6110-01-178-4753, is classified within Federal Supply Class 6110 (Electrical Control Equipment) of the Electric Wire, Power, and Distribution Equipment group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 6110-01-178-4753 |
| Primary Part Number | 17872-1 |
| Item Name | Switching Unit,power Transfer |
| FSC / FSG | 6110 / 61 — Electrical Control Equipment |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Phase | THREE |
| Current Type | AC |
| Switch Position Quantity | 2 |
| Switch Pole Quantity | 3 |
| Supplementary Features | NAVY TYPE ABT-A1 |
| Voltage in Volts | 120.0 |
| Switch Action Type | MAGNETIC CONTACTOR |
| Mounting Configuration | FOUR 17/32 IN. DIA HOLES; RECTANGULAR PATTERN; 6-1/16 IN. BY 16-1/2 IN. CENTERS IN |
| Manual Operation Facility | PROVIDED |
| Enclosure Feature | DRIPPROOF |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Switch Off Position | NOT INCLUDED |
| Current Rating in Amps | 50.0 |
| Switch Operation Method | MOTOR DRIVEN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 17872-1 PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| N297-3 | 5/1 Secondary reference Ward Leonard Ct Llc |
NSN 6110-01-178-4753 is a Switching Unit,power Transfer, manufactured by Ward Leonard Ct Llc, classified under FSC 6110, Electrical Control Equipment. Status: active.
NSN 6110-01-178-4753 has 1 manufacturer part number on file: 17872-1 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-1882. Verify interchangeability with system specifications before substitution.
Key specifications for 17872-1: Overall Height: 13.625 INCHES NOMINAL IN; Phase: THREE; Current Type: AC; Switch Position Quantity: 2. 14 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.