We've received your request for BB521-3 (described as Switch Pressure), manufactured by Dwyer Instruments Inc with CAGE code 85274. This part is registered under NSN 5930-00-629-0301, classified in FSG 59 Electrical and Electronic Equipment Components / FSC 5930 Switches. Our verification process will confirm traceability through supporting identifiers including NIIN 00-629-0301, NCB code 00 (origin: USA), and INC 00206. Please submit your formal quotation request to proceed.
Thank you for choosing Aerospace Exchange for your BB521-3 requirements. We specialize in authenticated aerospace components, offering both NSN-tracked military parts and commercial equivalents, all validated through our rigorous sourcing protocols.
How to Begin the Quotation Process
| MRC | Criteria | Characteristic |
|---|---|---|
| ABPM | BODY DIAMETER | 5.750 INCHES NOMINAL |
| AXGY | MOUNTING METHOD | UNTHREADED HOLE |
| CQGB | CONTACT ACTION STIMULUS | DECREASE |
| CTHF | CONTACT LOAD CURRENT RATING | 5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| CTZB | CONTACT VOLTAGE RATING IN VOLTS | 120.0 AC AT SEA LEVEL SECOND VOLTAGE |
| FEAT | SPECIAL FEATURES | BOURDON TUBES,MAGNETIC MERCURY SWITCH |
| MEDA | MEDIA FOR WHICH DESIGNED | LIQUID |
| ABKW | OVERALL HEIGHT | 6.125 INCHES NOMINAL |
| AEBV | UNTHREADED MOUNTING HOLE DIAMETER | 0.750 INCHES NOMINAL |
| AJZC | PRESSURE SWITCH TYPE | DIFFERENTIAL |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES SINGLE PRESSURE CONNECTION |
| CTYC | CONTACT ADJUSTABILITY | DEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE |
| CTYS | CONTACT ADJUSTMENT TYPE | EXTERNAL DEACTUATION POINT KNOB WITH SCALE AND EXTERNAL ACTUATION POINT KNOB WITH SCALE |
| CTYX | CONTACT STIMULUS RATING | 1.000 DIFFERENTIAL POINT NOMINAL POUNDS PER SQUARE INCH |
| CTZL | PRESSURE CONNECTOR TYPE | EXTERNAL SEAT-GASKET SEAL, THREADED EXTERNAL ALL CONNECTIONS |
| STYL | STYLE DESIGNATOR | CYLINDRICAL W/PORT |
| End Use : 20005 | Electric apparatus |
|---|---|
| Schedule B : 8536509065 (NAICS 335931) | Switches, for a voltage not exceeding 1000 volts, nesoi |
| SITC : 77255 | Switches for electrical apparatus, n.E.S., for voltages not exceeding 1, 000 volts |
| CRITL | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
|---|---|
| HMIC | P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item. |
| PMIC | U - Precious metal content is unknown |
 |
AS9120B and ISO 9001:2015 |
 |
Aviation Suppliers Association Member |
 |
FAA AC 0056B Accredited |
 |
AS 6081:2012 Certification |
 |
ESD S20.20-2014 Certification |
Don’t forget That We offer 24/7 Service, Competitive Prices, and Fast Deliveries. We Hope You'll Make Us Your One-Stop Purchasing Solution!
Request for Quote
