The Connector,plug,electrical, cataloged under National Stock Number 5935-01-133-5880, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Abb Installation Products Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5935-01-133-5880 |
| Primary Part Number | 2FP521 |
| Item Name | Connector,plug,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Abb Installation Products Inc |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 20.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Connector Locking Method | SPRING FRICTION |
| Body Style | STRAIGHT SHAPE, INTERNAL COUPLING W/STRAIN RELIEF |
| Overall Diameter | 3.156 INCHES NOMINAL IN |
| Mating End Quantity | 1 |
| Precious Material | SILVER |
| Precious Material and Weight | 0.005 SILVER GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 5 SINGLE MATING END SINGLE CONTACT GROUPING |
| Body Length | 4.188 INCHES NOMINAL IN |
| Included Contact Type | ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Maximum AC Voltage Rating in Volts | 440.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Polarization Method | CONTACT |
| Connector Cable Strain Relief Method | COMPRESSION NUT |
| Precious Material and Location | CONTACT SURFACES SILVER |
| Contact Removability | NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Surface Treatment | SILVER SINGLE MATING END SINGLE CONTACT GROUPING |
| Insert Material | GLASS AND PLASTIC 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 |
|---|---|
| 2FP521 PRIMARY | Abb Installation Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 2FP521 | 3/9 Design control — primary reference Midland-Ross Corp Russellstoll Div |
NSN 5935-01-133-5880 is a Connector,plug,electrical, manufactured by Abb Installation Products Inc, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-133-5880 has 1 manufacturer part number on file: 2FP521 (Abb Installation Products Inc).
Key specifications for 2FP521: Contact Maximum Current Rating in Amps: 20.0 SINGLE MATING END SINGLE CONTACT GROUPING; Connector Locking Method: SPRING FRICTION; Body Style: STRAIGHT SHAPE, INTERNAL COUPLING W/STRAIN RELIEF; Overall Diameter: 3.156 INCHES NOMINAL IN. 18 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.