PartsTable
Technical Data Sheet
PartsTable / COMPONENT / C2021-1
C2021-1 ✓ 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 body_length: 1.660 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN, thread_class: 2A ALL PRESSURE CONNECTION A, terminal_type: WIRE LOOP, thread_length: 0.310 INCHES MINIMUM AND 0.380 INCHES MAXIMUM ALL PRESSURE CONNECTION IN, overall_length: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, proof_pressure: 80.00 POUNDS PER SQUARE INCH GAGE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-704-9786, 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
C2021-1
NSN: 5930-00-704-9786
FSC: 5930
CAGE: 08664 — BRISTOL BABCOCK INC INSTRUMENTS-SYSTEMS DIV SUB OF BABCOCK INTL INC (USA)
SPECIFICATIONS
body_length1.660 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
thread_class2A ALL PRESSURE CONNECTION A
terminal_typeWIRE LOOP
thread_length0.310 INCHES MINIMUM AND 0.380 INCHES MAXIMUM ALL PRESSURE CONNECTION IN
overall_length1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
proof_pressure80.00 POUNDS PER SQUARE INCH GAGE LBS
mounting_methodTHREADED STUD(S)
outside_diameter0.112 INCHES NOMINAL ALL CONNECTIONS IN
overall_diameter1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN
style_designatorCYLINDRICAL
nominal_thread_size0.112 INCHES ALL PRESSURE CONNECTION IN
pressure_switch_typeDIFFERENTIAL
NSN5930-00-704-9786
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN C2021-1 MFR SWITCH,PRESSURE
KEY FEATURES
•
OVERALL DIAMETER: 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN
•
OPERATING TEMP RATING: -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
•
STYLE DESIGNATOR: CYLINDRICAL
•
MEDIA FOR WHICH DESIGNED: GAS
•
CONTACT ACTION STIMULUS: INCREASE
•
BODY LENGTH: 1.660 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
•
CONTACT VOLTAGE RATING IN VOLTS: 28.0 DC AT SEA LEVEL SINGLE VOLTAGE
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM IN
OPERATING TEMP RATING-65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
STYLE DESIGNATORCYLINDRICAL
MEDIA FOR WHICH DESIGNEDGAS
CONTACT ACTION STIMULUSINCREASE
BODY LENGTH1.660 INCHES MINIMUM AND 1.790 INCHES MAXIMUM IN
CONTACT VOLTAGE RATING IN VOLTS28.0 DC AT SEA LEVEL SINGLE VOLTAGE
DISTANCE BETWEEN MOUNTING FACILITY CENTERS0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
PROOF PRESSURE80.00 POUNDS PER SQUARE INCH GAGE LBS
THREAD QUANTITY PER INCH40 ALL PRESSURE CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AMS-QQ-A-200/8Interchangeable
interchangeable cross-reference
interchangeable
59409/QQ-A-200/11 7075-T6X3.0LInterchangeable
interchangeable cross-reference
interchangeable
SAE-AMS-QQ-A-200/8Interchangeable
interchangeable cross-reference
interchangeable
C42800-2L12Interchangeable
interchangeable cross-reference
interchangeable
21517Interchangeable
interchangeable cross-reference
interchangeable
2151-507Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C2021-1?
C2021-1 is a SWITCH,PRESSURE.
What parts can replace C2021-1?
There are 11 known substitutes for C2021-1: AMS-QQ-A-200/8, 59409/QQ-A-200/11 7075-T6X3.0L, SAE-AMS-QQ-A-200/8 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C2021-1?
C2021-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-704-9786. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026