The Relay,electromagnetic, cataloged under National Stock Number 5945-00-833-3283, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Marine Electric Systems Inc. Government technical data includes 10 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 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 | 5945-00-833-3283 |
| Primary Part Number | R277 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Marine Electric Systems Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Mounting Facility Pattern | DIAGONAL SINGLE MOUNTING FACILITY |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Duty Type | CONTINUOUS |
| Unthreaded Mounting Hole Diameter | 0.125 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding DC Resistance Rating | 11.4 KILOHMS NOMINAL SINGLE WINDING |
| Nominal Operating Current Rating and Type | 0.5 AMPERES DC SINGLE WINDING |
| Winding Quantity | 1 |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Terminal Type and Quantity | 5 PIN ALL FUNCTIONS |
| 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 |
|---|---|
| R277 PRIMARY | Marine Electric Systems Inc (USA) |
NSN 5945-00-833-3283 is a Relay,electromagnetic, manufactured by Marine Electric Systems Inc, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-833-3283 has 1 manufacturer part number on file: R277 (Marine Electric Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-225-7115. Verify interchangeability with system specifications before substitution.
Key specifications for R277: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 1.563 INCHES NOMINAL IN; Mounting Facility Pattern: DIAGONAL SINGLE MOUNTING FACILITY; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 10 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.