The Switch,sensitive, cataloged under National Stock Number 5930-01-006-9888, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5930-01-006-9888 |
| Primary Part Number | 21EN51R3 |
| Item Name | Switch,sensitive |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik |
| Status | ACTIVE |
| Inclosure Type | FULLY INCLOSED |
| Actuator Style | ROLLER PLUNGER |
| Actuator Roller Width | 0.500 INCHES NOMINAL IN |
| Actuator Movement | 0.040 PRETRAVEL INCHES MAXIMUM AND 0.250 OVERTRAVEL INCHES MINIMUM AND 0.020 DIFFERENTIAL INCHES MAXIMUM |
| Nonpile-Up Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY SINGLE SWITCH UNIT |
| Maximum Voltage Rating in Volts | 28.0 DC |
| Terminal Type and Quantity | 1 CONNECTOR, RECEPTACLE |
| Actuator Roller Diameter | 0.120 INCHES NOMINAL IN |
| Contact Load Current Rating at Maximum Rated Voltage | 5.000 AMPERES RESISTIVE DC AND 3.000 AMPERES INDUCTIVE DC AND 4.000 AMPERES MOTOR DC |
| Actuator Free Position Height | 1.751 INCHES MINIMUM AND 1.811 INCHES MAXIMUM IN |
| Hazardous Locations/environmental Protection | SUBMERSIBLE |
| 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 |
|---|---|
| 21EN51R3 | Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik (DEU) |
| 5L.4662.001.36 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| 21EN51R3 | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 443357K | 5/9 Secondary reference Giat Industries Centre De Bourges |
| 21EN51R3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-01-006-9888 is a Switch,sensitive, manufactured by Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-006-9888 has 3 manufacturer part numbers on file: 21EN51R3 (Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik), 5L.4662.001.36 (Hensoldt Sensors Gmbh Div Seps), 21EN51R3 (Satair A/s).
Key specifications for 21EN51R3: Inclosure Type: FULLY INCLOSED; Actuator Style: ROLLER PLUNGER; Actuator Roller Width: 0.500 INCHES NOMINAL IN; Actuator Movement: 0.040 PRETRAVEL INCHES MAXIMUM AND 0.250 OVERTRAVEL INCHES MINIMUM AND 0.020 DIFFERENTIAL INCHES MAXIMUM. 11 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.