The Switch,pressure, cataloged under National Stock Number 5930-01-370-6419, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-370-6419 |
| Primary Part Number | 1551AS243-2 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Proof Pressure | 200.00 POUNDS PER SQUARE INCH GAGE LBS |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD FOURTH VOLTAGE |
| Contact Load Current Rating | 0.25 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Mounting Method | BRACKET(S) |
| Contact Adjustment Range | +3.00 TO 100.00 ACTUATION POINT POUNDS PER SQUARE INCH GAGE AND +3.00 TO 100.00 DEACTUATION POINT POUNDS PER SQUARE INCH GAGE |
| Style Designator | CYLINDRICAL W/FLANGE |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT HEX NUT AND EXTERNAL DEACTUATION POINT HEX NUT |
| Operating Temp Rating | -4.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, BOTH POSITIONS MAINTAINED |
| Media for Which Designed | LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE AND DEACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 250.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 DC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL FOURTH VOLTAGE |
| 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 |
|---|---|
| SA11D/TF10A42 | Automatic Switch Company Dba Asco (USA) |
| 1551AS243-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| SA11A/TF10A32 | 5/9 Secondary reference Automatic Switch Company Dba Asco |
NSN 5930-01-370-6419 is a Switch,pressure, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-370-6419 has 2 manufacturer part numbers on file: SA11D/TF10A42 (Automatic Switch Company Dba Asco), 1551AS243-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1551AS243-2: Mounting Facility Pattern: TWO POSITION IN-LINE; Proof Pressure: 200.00 POUNDS PER SQUARE INCH GAGE LBS; Contact Load Current Rating: 0.5 AMPERES RESISTIVE LOAD FIRST VOLTAGE; Contact Load Current Rating: 0.5 AMPERES RESISTIVE LOAD THIRD VOLTAGE. 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.