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PartsTable / COMPONENT / P28AA
P28AA ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,PRESSURE is a the manufacturer industrial component. Key specifications include overall_width: 5.656 INCHES NOMINAL IN, overall_height: 2.297 INCHES NOMINAL IN, overall_length: 5.297 INCHES NOMINAL IN, style_designator: RECTANGULAR, pressure_switch_type: DIFFERENTIAL, contact_adjustability: ACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-253-1515, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
P28AA
NSN: 5930-01-253-1515
FSC: 5930
CAGE: 92578 — JOHNSON CONTROLS INC CONTROL PRODUCTS DIV (USA)
SPECIFICATIONS
overall_width5.656 INCHES NOMINAL IN
overall_height2.297 INCHES NOMINAL IN
overall_length5.297 INCHES NOMINAL IN
style_designatorRECTANGULAR
pressure_switch_typeDIFFERENTIAL
contact_adjustabilityACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET
contact_action_stimulusDECREASE
contact_stimulus_rating8.00 DIFFERENTIAL POINT MINIMUM POUND AND 70.00 DIFFERENTIAL POINT MAXIMUM POUND
media_for_which_designedLIQUID
contact_load_current_rating5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
contact_voltage_rating_in_volts240.0 AC AT SEA LEVEL SECOND VOLTAGE
NSN5930-01-253-1515
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN P28AA MFR SWITCH,PRESSURE
KEY FEATURES
•
CONTACT VOLTAGE RATING IN VOLTS: 120.0 AC AT SEA LEVEL FIRST VOLTAGE
•
STYLE DESIGNATOR: RECTANGULAR
•
PRESSURE SWITCH TYPE: DIFFERENTIAL
•
CONTACT ADJUSTABILITY: ACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET
•
CONTACT LOAD CURRENT RATING: 5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
•
CONTACT ACTION STIMULUS: DECREASE
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT VOLTAGE RATING IN VOLTS120.0 AC AT SEA LEVEL FIRST VOLTAGE
STYLE DESIGNATORRECTANGULAR
PRESSURE SWITCH TYPEDIFFERENTIAL
CONTACT ADJUSTABILITYACTUATION POINT ADJUSTABLE, PRESET AND DEACTUATION POINT ADJUSTABLE, PRESET
CONTACT LOAD CURRENT RATING5.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE
CONTACT VOLTAGE RATING IN VOLTS240.0 AC AT SEA LEVEL SECOND VOLTAGE
OVERALL HEIGHT2.297 INCHES NOMINAL IN
CONTACT ACTION STIMULUSDECREASE
OVERALL LENGTH5.297 INCHES NOMINAL IN
CONTACT STIMULUS RATING8.00 DIFFERENTIAL POINT MINIMUM POUND AND 70.00 DIFFERENTIAL POINT MAXIMUM POUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
74059373Interchangeable
interchangeable cross-reference
interchangeable
20951Interchangeable
interchangeable cross-reference
interchangeable
51550Interchangeable
interchangeable cross-reference
interchangeable
U0905TMInterchangeable
interchangeable cross-reference
interchangeable
170739AInterchangeable
interchangeable cross-reference
interchangeable
I70739AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P28AA?
P28AA is a SWITCH,PRESSURE.
What parts can replace P28AA?
There are 20 known substitutes for P28AA: 74059373, 20951, 51550 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P28AA?
P28AA is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-01-253-1515. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026