The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-258-1923, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ideal Precision Meter Co Dba Ideal Precision Meter Co. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5935-00-258-1923 |
| Primary Part Number | SM20-20S |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Ideal Precision Meter Co Dba Ideal Precision Meter Co |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 5.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Body Style | STRAIGHT SHAPE |
| Terminal Type | SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING |
| Nominal Thread Length | 0.188 INCHES IN |
| Mating End Quantity | 1 |
| Contact Position Arrangement Style | 20 20-20 SINGLE MATING END |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Distance Between Mounting Facility Centers | 1.000 INCHES NOMINAL IN |
| Included Contact Quantity | 20 SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.086 INCHES IN |
| Included Contact Type | ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING |
| Polarization Method | GUIDE PIN/SOCKET |
| Contact Removability | NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 56 |
| Threaded Device Type | MOUNTING STUD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Insert Material | PLASTIC MELAMINE 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 |
|---|---|
| SM20-20S PRIMARY | Ideal Precision Meter Co Dba Ideal Precision Meter Co (USA) |
| SMS20-20027 | Vishay Dale Electronics, Inc. (USA) |
| 778-401 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| Reference | Meaning |
|---|---|
| SMS20-20 | 5/9 Secondary reference Lionel Corp |
| SM20-20S | 5/2 Secondary reference U.S. Government activity |
| 400523 | 5/9 Secondary reference Singer Co the |
NSN 5935-00-258-1923 is a Connector,receptacle,electrical, manufactured by Ideal Precision Meter Co Dba Ideal Precision Meter Co, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-00-258-1923 has 3 manufacturer part numbers on file: SM20-20S (Ideal Precision Meter Co Dba Ideal Precision Meter Co), SMS20-20027 (Vishay Dale Electronics, Inc.), 778-401 (Bae Systems Information and Electronic Systems Integration Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3950-01-293-8051. Verify interchangeability with system specifications before substitution.
Key specifications for SM20-20S: Overall Height: 0.531 INCHES NOMINAL IN; Contact Maximum Current Rating in Amps: 5.0 SINGLE MATING END SINGLE CONTACT GROUPING; Body Style: STRAIGHT SHAPE; Terminal Type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING. 19 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.