The Adapter,connector, cataloged under National Stock Number 5935-00-807-4452, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. 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 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 | 5935-00-807-4452 |
| Primary Part Number | PTB-20-39PS |
| Item Name | Adapter,connector |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| Contact Maximum Current Rating in Amps | 7.5 FIRST MATING END SECOND CONTACT GROUPING |
| Contact Maximum Current Rating in Amps | 7.5 SECOND MATING END SECOND CONTACT GROUPING |
| Contact Maximum Current Rating in Amps | 22.0 FIRST MATING END FIRST CONTACT GROUPING |
| Contact Maximum Current Rating in Amps | 22.0 SECOND MATING END FIRST CONTACT GROUPING |
| Connector Locking Method | BAYONET PIN |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE W/FLANGE |
| Contact Material | COPPER ALLOY ALL MATING ENDS ALL CONTACT GROUPINGS |
| Mating End Quantity | 2 |
| Precious Material | GOLD AND SILVER |
| Contact Position Arrangement Style | 20-39 ALL MATING ENDS |
| Shell Surface Treatment | CADMIUM AND CHROMATE |
| Insert Position in Deg | 0.0 |
| Unthreaded Mounting Hole Diameter | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Precious Material and Weight | 0.078 GOLD GRAINS, TROY AND 0.078 SILVER GRAINS, TROY |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 1.156 INCHES NOMINAL IN |
| Included Contact Quantity | 2 SECOND MATING END FIRST CONTACT GROUPING |
| Included Contact Quantity | 2 FIRST MATING END FIRST CONTACT GROUPING |
| Included Contact Quantity | 37 FIRST MATING END SECOND CONTACT GROUPING |
| Included Contact Quantity | 37 SECOND MATING END SECOND CONTACT GROUPING |
| Included Contact Type | ROUND PIN FIRST MATING END ALL CONTACT GROUPINGS |
| Included Contact Type | ROUND SOCKET SECOND MATING END ALL CONTACT GROUPINGS |
| Contact Maximum AC Voltage Rating in Volts | 500.0 ALL MATING ENDS ALL CONTACT GROUPINGS |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 1.156 INCHES NOMINAL IN |
| Polarization Method | KEYWAY OR MULTIPLE KEYWAY |
| Environmental Protection | PRESSURE PROOF |
| Precious Material and Location | CONTACT SURFACES GOLD AND CONTACT SURFACES SILVER |
| 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 |
|---|---|
| 531213-1 | Instruments and Flight Research, Inc. (USA) |
| PTB-20-39PS PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
NSN 5935-00-807-4452 is a Adapter,connector, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-00-807-4452 has 2 manufacturer part numbers on file: 531213-1 (Instruments and Flight Research, Inc.), PTB-20-39PS (Amphenol Corp Div Amphenol Aerospace Operations).
1 possible match (shared part number, not a government interchangeability claim): 5360-00-876-2383. Verify interchangeability with system specifications before substitution.
Key specifications for PTB-20-39PS: Overall Height: 1.422 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN; Contact Maximum Current Rating in Amps: 7.5 FIRST MATING END SECOND CONTACT GROUPING; Contact Maximum Current Rating in Amps: 7.5 SECOND MATING END SECOND CONTACT GROUPING; Contact Maximum Current Rating in Amps: 22.0 FIRST MATING END FIRST CONTACT GROUPING. 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.