The Connector,plug,electrical, cataloged under National Stock Number 5935-01-028-6552, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 29 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5935-01-028-6552 |
| Primary Part Number | MS3406D18-4S |
| Item Name | Connector,plug,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connector Locking Method | INTERNALLY THREADED COUPLING RING |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE, INTERNAL COUPLING |
| Terminal Type | CRIMP SINGLE MATING END SINGLE CONTACT GROUPING |
| Overall Diameter | 1.344 INCHES MAXIMUM IN |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 18-4 SINGLE MATING END |
| Shell Surface Treatment | CADMIUM |
| Insert Position in Deg | 0.0 |
| Precious Material and Weight | 0.004 GOLD GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 4 SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.125 INCHES IN |
| Specification/standard Data | 81349-MIL-C-5015 GOVERNMENT SPECIFICATION |
| Included Contact Type | ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING |
| Polarization Method | KEYWAY OR MULTIPLE KEYWAY |
| Contact Surface Treatment Document and Classification | MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING |
| Environmental Protection | MOISTURE RESISTANT AND VIBRATION RESISTANT AND SALT WATER RESISTANT |
| Precious Material and Location | CONTACT SURFACE GOLD |
| Contact Removability | REMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Class | 2B |
| Test Data Document | 81349-MIL-C-5015 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Contact Surface Treatment | GOLD SINGLE MATING END SINGLE CONTACT GROUPING |
| Threaded Device Type | COUPLING FACILITY |
| Thread Series Designator | UNEF |
| Insert Material | PLASTIC SILICONE MINERAL FILLED 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 |
|---|---|
| MS3406D18-4S PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS50151 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MILC5015 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-5015 | 5/9 Secondary reference U.S. Government activity |
| MS3406D18-4S | 5/9 Secondary reference U.S. Government activity |
NSN 5935-01-028-6552 is a Connector,plug,electrical, manufactured by Sae International Dba Sae International, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-028-6552 has 1 manufacturer part number on file: MS3406D18-4S (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-550-5896. Verify interchangeability with system specifications before substitution.
Key specifications for MS3406D18-4S: Connector Locking Method: INTERNALLY THREADED COUPLING RING; Shell Type: SOLID; Body Style: STRAIGHT SHAPE, INTERNAL COUPLING; Terminal Type: CRIMP SINGLE MATING END SINGLE CONTACT GROUPING. 29 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.