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MIL-T-7990 — Technical Data Sheet

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MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M · 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

TRANSMITTER,TEMPERATURE,ELECTRIC. Key specifications include UNIT TYPE: PROTECTIVE TUBE, THREAD LENGTH: 0.281 INCHES NOMINAL IN, OVERALL LENGTH: 5.625 INCHES NOMINAL IN, OUTSIDE DIAMETER: 0.281 INCHES NOMINAL IN, STYLE DESIGNATOR: TRANSMITTER, 24V DC V, FEATURES PROVIDED: GASKET. This part is cataloged in the Federal Logistics Information System under NSN 6685-00-373-9004, 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
MIL-T-7990
NSN: 6685-00-373-9004
FSC: 6685
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
UNIT TYPEPROTECTIVE TUBE
THREAD LENGTH0.281 INCHES NOMINAL IN
OVERALL LENGTH5.625 INCHES NOMINAL IN
OUTSIDE DIAMETER0.281 INCHES NOMINAL IN
STYLE DESIGNATORTRANSMITTER, 24V DC V
FEATURES PROVIDEDGASKET
OPERATING TEMP RANGE-70.0 TO 300.0 CELSIUS DEGC
MOUNTING THREAD QUANTITY18 PER INCH
MOUNTING FACILITY TYPE AND QUANTITY1 THREAD
ACCOMMODATED CONTACT TYPE AND QUANTITY2 MALE SNAP-ON
DISTANCE ACROSS WRENCHING SURFACE FLATS0.875 INCHES NOMINAL IN
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER0.625 INCHES IN
NSN6685-00-373-9004
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M TRANSMITTER,TEMPERATURE,ELECTRIC TITLE COMPONENT PN MIL-T-7990 MFR MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M TRANSMITTER,TEMPERATUR
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 THREAD
•
MOUNTING THREAD QUANTITY: 18 PER INCH
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
UNIT TYPE: PROTECTIVE TUBE
•
ACCOMMODATED CONTACT TYPE AND QUANTITY: 2 MALE SNAP-ON
•
STYLE DESIGNATOR: TRANSMITTER, 24V DC V
•
TERMINAL TYPE AND QUANTITY: 1 THREADED STUD
•
OPERATING TEMP RANGE: -70.0 TO 300.0 CELSIUS DEGC
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 THREAD
MOUNTING THREAD QUANTITY18 PER INCH
MATERIALSTEEL CORROSION RESISTING OVERALL
UNIT TYPEPROTECTIVE TUBE
ACCOMMODATED CONTACT TYPE AND QUANTITY2 MALE SNAP-ON
STYLE DESIGNATORTRANSMITTER, 24V DC V
TERMINAL TYPE AND QUANTITY1 THREADED STUD
OPERATING TEMP RANGE-70.0 TO 300.0 CELSIUS DEGC
THREAD LENGTH0.281 INCHES NOMINAL IN
OVERALL LENGTH3.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
6685PL0796721InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6210158InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS28034-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
112639InterchangeableGOVERNMENT REGISTRY
Ef-VG970
interchangeable
232N90-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS28034-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-T-7990?
MIL-T-7990 is a TRANSMITTER,TEMPERATURE,ELECTRIC manufactured by MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M.
What parts can replace MIL-T-7990?
There are 30 known substitutes for MIL-T-7990: 6685PL0796721, 6210158, MS28034-3 and 27 more. Substitute compatibility should be verified for your specific system.
Is MIL-T-7990 still available?
MIL-T-7990 is currently cancelled.
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Last verified: September 2026