The Connector,plug,electrical, cataloged under National Stock Number 5935-00-271-3203, 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 28 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5935-00-271-3203 |
| Primary Part Number | MS3406D20-27S |
| Item Name | Connector,plug,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 22.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| 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 |
| Nominal Thread Length | 0.290 INCHES IN |
| Overall Diameter | 1.250 INCHES MAXIMUM IN |
| Mating End Quantity | 1 |
| Contact Position Arrangement Style | 20-27 SINGLE MATING END |
| Shell Surface Treatment | CADMIUM |
| Insert Position in Deg | 0.0 |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 14 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 | 1.188 INCHES AND 1.250 INCHES IN |
| Specification/standard Data | 81349-MIL-C-5015 GOVERNMENT SPECIFICATION |
| 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 | KEYWAY OR MULTIPLE KEYWAY |
| Environmental Protection | MOISTURE RESISTANT AND VIBRATION RESISTANT AND SALT WATER RESISTANT |
| Contact Removability | REMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Class | 2A AND 2B A |
| 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.). |
| Threaded Device Type | BACK SHELL AND COUPLING FACILITY |
| Thread Series Designator | UNEF |
| Contact Maximum DC Voltage Rating in Volts | 700.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 2607.504 | Ge Avio Srl (ITA) |
| MS3406D20-27S PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS3406D20-27S | 5/9 Secondary reference U.S. Government activity |
| SAE-AS50151 | 3/1 Design control — primary reference Sae International Dba Sae International |
| SAE-AS50151 | 5/9 Secondary reference U.S. Government activity |
| MS3406D20-27E | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 10-214520-27S | C/1 Advisory reference — outside the item-of-supply concept Amphenol Corp Div Amphenol Aerospace Operations |
| MS3406D20-27S | 5/9 Secondary reference U.S. Government activity |
| MIL-C-5015 | 5/9 Secondary reference U.S. Government activity |
NSN 5935-00-271-3203 is a Connector,plug,electrical, manufactured by Sae International Dba Sae International, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-00-271-3203 has 2 manufacturer part numbers on file: 2607.504 (Ge Avio Srl), MS3406D20-27S (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-146-1738. Verify interchangeability with system specifications before substitution.
Key specifications for MS3406D20-27S: Contact Maximum Current Rating in Amps: 22.0 SINGLE MATING END SINGLE CONTACT GROUPING; Connector Locking Method: INTERNALLY THREADED COUPLING RING; Shell Type: SOLID; Body Style: STRAIGHT SHAPE, INTERNAL COUPLING. 28 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.