The Connector,plug,electrical, cataloged under National Stock Number 5935-01-264-2139, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5935-01-264-2139 |
| Primary Part Number | ST82D53-20 |
| Item Name | Connector,plug,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Lockheed Martin Corp |
| Status | ACTIVE |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Material | STEEL SINGLE MATING END SINGLE CONTACT GROUPING |
| Overall Diameter | 0.575 INCHES NOMINAL IN |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Shell Surface Treatment | GOLD |
| Shell Material Document and Classification | ASTM-A 582,CLASS 303,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 1 SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | MIL- C-45204,TYPE I,GRADE C,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Included Contact Type | ROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Surface Treatment Document and Classification | MIL-G-45204,TYPE I,CLASS 2,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING |
| Environmental Protection | HEAT RESISTANT AND COLD RESISTANT AND PRESSURE PROOF |
| Precious Material and Location | CONTACT SURFACE AND BODY SURFACE GOLD |
| Contact Surface Treatment | GOLD SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| ST82D53-20 | Lockheed Martin Corp (USA) |
| Reference | Meaning |
|---|---|
| 50-607-7901-31 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5935-01-264-2139 is a Connector,plug,electrical, manufactured by Lockheed Martin Corp, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-264-2139 has 1 manufacturer part number on file: ST82D53-20 (Lockheed Martin Corp).
Key specifications for ST82D53-20: Body Style: STRAIGHT SHAPE; Terminal Type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING; Contact Material: STEEL SINGLE MATING END SINGLE CONTACT GROUPING; Overall Diameter: 0.575 INCHES NOMINAL IN. 17 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.