The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-339-9606, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Dow-Elco, Inc.. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5935-01-339-9606 |
| Primary Part Number | 521685-1 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Dow-Elco, Inc. |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 10.0 SINGLE MATING END FIRST CONTACT GROUPING |
| Contact Maximum Current Rating in Amps | 7.5 SINGLE MATING END SECOND CONTACT GROUPING |
| Connector Locking Method | FRICTION |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | SOLDER WELL SINGLE MATING END ALL CONTACT GROUPINGS |
| Contact Material | COPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 24 SINGLE MATING END |
| Shell Surface Treatment | CADMIUM AND CHROMATE |
| Unthreaded Mounting Hole Diameter | 0.120 INCHES NOMINAL IN |
| Insert Material Document and Classification | MIL-M-14,TYPE SDG-F MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END |
| Precious Material and Weight | 0.024 GOLD GRAINS, TROY |
| Shell Material Document and Classification | ASTM A620 ASSN STD SINGLE MATERIAL RESPONSE |
| Terminal Location | BACK SINGLE MATING END ALL CONTACT GROUPINGS |
| Distance Between Mounting Facility Centers | 2.406 INCHES NOMINAL IN |
| Included Contact Quantity | 7 SINGLE MATING END FIRST CONTACT GROUPING |
| Included Contact Quantity | 17 SINGLE MATING END SECOND CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 2 FED SPEC ALL TREATMENT RESPONSES |
| Operating Temp Rating | -65.0 CELSIUS MINIMUM AND 150.0 CELSIUS MAXIMUM DEGC |
| Included Contact Type | ROUND SOCKET SINGLE MATING END ALL CONTACT GROUPINGS |
| Polarization Method | MATING END AND CONTACT |
| Contact Surface Treatment Document and Classification | MIL-G-45204,TYPII,GRADE C,CLASS 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-14550 MIL SPEC 2ND TREATMENT RESPONSE SINGLE MATING END ALL CONTACT GROUPINGS |
| Environmental Protection | CORROSION RESISTANT |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Contact Removability | NONREMOVABLE SINGLE MATING END ALL CONTACT GROUPINGS |
| 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 |
|---|---|
| 521685-1 | Dow-Elco, Inc. (USA) |
| DDMM24W7S-A101 | Itt Cannon Llc (USA) |
| Reference | Meaning |
|---|---|
| 521685-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5935-01-339-9606 is a Connector,receptacle,electrical, manufactured by Dow-Elco, Inc., classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-339-9606 has 2 manufacturer part numbers on file: 521685-1 (Dow-Elco, Inc.), DDMM24W7S-A101 (Itt Cannon Llc).
Key specifications for 521685-1: Overall Height: 0.939 INCHES NOMINAL IN; Contact Maximum Current Rating in Amps: 10.0 SINGLE MATING END FIRST CONTACT GROUPING; Contact Maximum Current Rating in Amps: 7.5 SINGLE MATING END SECOND CONTACT GROUPING; Connector Locking Method: FRICTION. 27 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.