The Switch,sensitive, cataloged under National Stock Number 5930-01-159-6638, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-159-6638 |
| Primary Part Number | 77C718093P1 |
| Item Name | Switch,sensitive |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Actuator Diameter | 0.130 INCHES NOMINAL IN |
| Inclosure Type | FULLY INCLOSED |
| Body Style | HOLE MOUNTED |
| Housing Height | 1.780 INCHES NOMINAL IN |
| Actuator Style | ADJUSTABLE ARM |
| Center to Center Distance Between Housing Mounting Facilities Parallel to Length | 2.340 INCHES NOMINAL IN |
| Center to Center Distance Between Housing Mounting Facilities Parallel to Width | 1.160 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Switch Actuating Force | 64.0 INCH-OUNCES MAXIMUM IN |
| Actuator Length | 13.000 INCHES MAXIMUM IN |
| Housing Width | 1.880 INCHES NOMINAL IN |
| Actuator Movement | 7.0 PRETRAVEL DEGREES MAXIMUM AND 68.0 OVERTRAVEL DEGREES MINIMUM AND 4.0 DIFFERENTIAL DEGREES MINIMUM |
| Nonpile-Up Contact Arrangement | 2 POLE, DOUBLE THROW, DOUBLE BREAK/DOUBLE MAKE, PERMANENT JUMPER, ONE POSITION MOMENTARY SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 600.0 AC AND 240.0 DC |
| Terminal Type and Quantity | 8 SCREW |
| Housing Length | 4.690 INCHES NOMINAL IN |
| Contact Load Current Rating at Maximum Rated Voltage | 400.000 MILLIAMPERES RESISTIVE DC AND 150.000 MILLIAMPERES INDUCTIVE DC AND 600.000 MILLIAMPERES RESISTIVE AC |
| Hazardous Locations/environmental Protection | MOISTURE RESISTANT |
| 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 |
|---|---|
| 77C718093P1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 77C718093P001 | Lockheed Martin Corporation Div Rms (USA) |
| LSYPB4L-4N | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| LSYPB4L-4N | 5/2 Secondary reference U.S. Government activity |
| LSYPB4L-4NC | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-159-6638 is a Switch,sensitive, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-159-6638 has 3 manufacturer part numbers on file: 77C718093P1 (Lockheed Martin Corporation Div Rms), 77C718093P001 (Lockheed Martin Corporation Div Rms), LSYPB4L-4N (Satair A/s).
Key specifications for 77C718093P1: Overall Height: 2.430 INCHES NOMINAL IN; Actuator Diameter: 0.130 INCHES NOMINAL IN; Inclosure Type: FULLY INCLOSED; Body Style: HOLE MOUNTED. 18 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.