The Connector,plug,electrical, cataloged under National Stock Number 5935-01-143-0261, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-143-0261 |
| Primary Part Number | 5475561-4 |
| Item Name | Connector,plug,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 7.5 SINGLE MATING END SINGLE CONTACT GROUPING |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Material | COPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 20 20-20 SINGLE MATING END |
| Insert Material Document and Classification | MIL-M-14,TYPE GDI-30F MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END |
| Precious Material and Weight | 0.020 GOLD GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 20 SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.086 INCHES IN |
| Included Contact Type | ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Maximum AC Voltage Rating in Volts | 500.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Polarization Method | GUIDE PIN/SOCKET |
| Contact Surface Treatment Document and Classification | MIL-G-45204,TYPE 2,CLASS 1,GRADE C OR D MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290,CLASS 1 FED SPEC 2ND TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING |
| Environmental Protection | HUMIDITY RESISTANT AND SHOCK RESISTANT AND THERMAL SHOCK RESISTANT AND VIBRATION RESISTANT |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Contact Removability | NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Class | 2A AND 2B A |
| Thread Quantity Per Inch | 56 |
| Contact Surface Treatment | GOLD AND NICKEL SINGLE MATING END SINGLE CONTACT GROUPING |
| Threaded Device Type | COUPLING FACILITY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Insert Material | GLASS AND PLASTIC DIALLYL PHTHALATE SINGLE MATING END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5475561-4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| SMI-20F1K-50GN | 5/9 Secondary reference U.S. Government activity |
NSN 5935-01-143-0261 is a Connector,plug,electrical, manufactured by Naval Sea Systems Command, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-143-0261 has 1 manufacturer part number on file: 5475561-4 (Naval Sea Systems Command).
Key specifications for 5475561-4: Overall Height: 0.578 INCHES NOMINAL IN; Contact Maximum Current Rating in Amps: 7.5 SINGLE MATING END SINGLE CONTACT GROUPING; Body Style: STRAIGHT SHAPE; Terminal Type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING. 26 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.