The Relay,electromagnetic, cataloged under National Stock Number 5945-01-548-6953, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rs Americas Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5945-01-548-6953 |
| Primary Part Number | 3UG4513-1BR20 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Rs Americas Inc |
| Status | ACTIVE |
| Time Delay | 0.00 SECONDS MINIMUM AND 20.00 SECONDS MAXIMUM ADJUSTABLE OPERATE TIME |
| 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 |
|---|---|
| 3UG4513-1BR20 | Rs Americas Inc (USA) |
| Reference | Meaning |
|---|---|
| 3UG4513-1BR20 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5945-01-548-6953 is a Relay,electromagnetic, manufactured by Rs Americas Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-548-6953 has 1 manufacturer part number on file: 3UG4513-1BR20 (Rs Americas Inc).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-664-0803. Verify interchangeability with system specifications before substitution.
Key specifications for 3UG4513-1BR20: Overall Width: 22.5 MILLIMETERS NOMINAL MM; Time Delay: 0.00 SECONDS MINIMUM AND 20.00 SECONDS MAXIMUM ADJUSTABLE OPERATE TIME; Special Features: END ITEM: PANEL, CONTROL, ITEM IS SINGLE-PHASE, SCREW TERMINAL, 2 CONTACTS, MAIN VOLTAGE IS 160-690V V. 1 specification is 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.