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ST7A ✓ 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include phase: SINGLE INPUT, material: GLASS ENCLOSURE, contact_type: PIN, current_type: AC, overall_width: 2.438 INCHES NOMINAL IN, overall_length: 5.050 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-526-7864, 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
ST7A
NSN: 6685-00-526-7864
FSC: 6685
CAGE: 61349 — AMETEK, INC. DIV AEROSPACE & DEFENSE (USA)
SPECIFICATIONS
phaseSINGLE INPUT
materialGLASS ENCLOSURE
contact_typePIN
current_typeAC
overall_width2.438 INCHES NOMINAL IN
overall_length5.050 INCHES MAXIMUM IN
voltage_rating26.0 VOLTS NOMINAL INPUT
mounting_methodTERMINAL
actuation_methodBOURDON TUBE
contact_quantity4
frequency_rating400.0 HERTZ NOMINAL INPUT
overall_diameter1.380 INCHES MAXIMUM IN
NSN6685-00-526-7864
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEMICONDUCTOR DEVICE,DIODE TITLE COMPONENT PN ST7A MFR SEMICONDUCTOR DEVICE,D
KEY FEATURES
•
VOLTAGE RATING: 26.0 VOLTS NOMINAL INPUT
•
MECHANICAL CONNECTION SIZE: 7/16 IN. DIA IN
•
MEASUREMENT RANGE: +0.0 TO 4000.0 POUNDS PER SQUARE INCH LBS
•
ELECTRICAL CONNECTION IDENTIFYING NUMBER: TYPE NO. MS33678-14S-2P
•
MECHANICAL CONNECTION TYPE: INTERNAL PIPE
•
MECHANICAL CONNECTION QUANTITY: 2
•
CONNECTOR CONTROLLING AGENCY: AN
TECHNICAL CHARACTERISTICS (FLIS)
VOLTAGE RATING26.0 VOLTS NOMINAL INPUT
OVERALL WIDTH2.438 INCHES NOMINAL IN
MECHANICAL CONNECTION SIZE7/16 IN. DIA IN
MEASUREMENT RANGE+0.0 TO 4000.0 POUNDS PER SQUARE INCH LBS
ELECTRICAL CONNECTION IDENTIFYING NUMBERTYPE NO. MS33678-14S-2P
MECHANICAL CONNECTION TYPEINTERNAL PIPE
MECHANICAL CONNECTION QUANTITY2
CONNECTOR CONTROLLING AGENCYAN
MOUNTING METHODHOLE
CONTACT QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
8465Interchangeable
interchangeable cross-reference
interchangeable
MIL-T-25307Interchangeable
interchangeable cross-reference
interchangeable
MS28005-4Interchangeable
interchangeable cross-reference
interchangeable
1358-041040Interchangeable
interchangeable cross-reference
interchangeable
5184170 SH-8 202Interchangeable
interchangeable cross-reference
interchangeable
400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST7A?
ST7A is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace ST7A?
There are 26 known substitutes for ST7A: 8465, MIL-T-25307, MS28005-4 and 23 more. Substitute compatibility should be verified for your specific system.
Is ST7A still available?
ST7A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026