The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-577-8631, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Viasys Respiratory Care Inc. Dba Biosys Healthcare. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-00-577-8631 |
| Primary Part Number | 668-818166 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Viasys Respiratory Care Inc. Dba Biosys Healthcare |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 7.5 SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Material | COPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING |
| Bushing Accommodation Hole Shape | ROUND KEYED |
| Overall Diameter | 0.656 INCHES NOMINAL IN |
| Mating End Quantity | 1 |
| Precious Material | GOLD AND SILVER |
| Contact Position Arrangement Style | MH-5 SINGLE MATING END |
| Precious Material and Weight | 0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Included Contact Quantity | 5 SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Included Contact Type | ROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Maximum AC Voltage Rating in Volts | 500.0 SINGLE MATING END SINGLE CONTACT GROUPING |
| Polarization Method | MATING END |
| Precious Material and Location | CONTACT SURFACES GOLD AND CONTACT SURFACES SILVER |
| Contact Removability | NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Contact Surface Treatment | GOLD AND SILVER SINGLE MATING END SINGLE CONTACT GROUPING |
| Threaded Device Type | MOUNTING STUD |
| Thread Series Designator | UNF |
| Insert Material | PLASTIC DIALLYL PHTHALATE 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 |
|---|---|
| 668-818166 PRIMARY | Viasys Respiratory Care Inc. Dba Biosys Healthcare (USA) |
| Reference | Meaning |
|---|---|
| 126-010 | 5/9 Secondary reference Amphenol Corp Spectra-Strip/itd |
NSN 5935-00-577-8631 is a Connector,receptacle,electrical, manufactured by Viasys Respiratory Care Inc. Dba Biosys Healthcare, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-00-577-8631 has 1 manufacturer part number on file: 668-818166 (Viasys Respiratory Care Inc. Dba Biosys Healthcare).
3 possible matches (shared part number, not a government interchangeability claim): 5355-00-667-6325, 1945-01-478-7911, 5995-01-729-0456. Verify interchangeability with system specifications before substitution.
Key specifications for 668-818166: Contact Maximum Current Rating in Amps: 7.5 SINGLE MATING END SINGLE CONTACT GROUPING; Contact Material: COPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING; Bushing Accommodation Hole Shape: ROUND KEYED; Overall Diameter: 0.656 INCHES NOMINAL IN. 23 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.