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PartsTable / COMPONENT / MILB5423-9TYCSZ4
MILB5423-9TYCSZ4 ✓ 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 BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, thread_class: 2B, thread_length: 0.175 INCHES NOMINAL IN, thread_series: UNEF, overall_height: 0.239 INCHES NOMINAL IN, mounting_method: INTEGRAL THREADED NUT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-892-9026, 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
MILB5423-9TYCSZ4
NSN: 5930-00-892-9026
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SILICONE BODY
thread_class2B
thread_length0.175 INCHES NOMINAL IN
thread_seriesUNEF
overall_height0.239 INCHES NOMINAL IN
mounting_methodINTEGRAL THREADED NUT
special_featuresFSC CHG PER DOUGLAS COMPTON
style_designatorTHRU-HOLE
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
base_inside_diameter0.250 INCHES NOMINAL IN
base_thread_locationINTERNAL
NSN5930-00-892-9026
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN MILB5423-9TYCSZ4 MFR BOOT,DUST AND MOISTURE
KEY FEATURES
•
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: DUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT-NEMA TYPE 4
•
OPENING INSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
THREAD SERIES: UNEF
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
•
MOUNTING DEVICE QUANTITY: 1
TECHNICAL CHARACTERISTICS (FLIS)
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONDUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT-NEMA TYPE 4
SPECIAL FEATURESFSC CHG PER DOUGLAS COMPTON
OPENING INSIDE DIAMETER0.125 INCHES NOMINAL IN
THREAD SERIESUNEF
NOMINAL THREAD SIZE0.250 INCHES IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
MOUNTING DEVICE QUANTITY1
BASE THREAD LOCATIONINTERNAL
BASE INSIDE DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
M5423/09-09Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-5423/9Interchangeable
interchangeable cross-reference
interchangeable
MILB5423-9Interchangeable
interchangeable cross-reference
interchangeable
10164106Interchangeable
interchangeable cross-reference
interchangeable
131292Interchangeable
interchangeable cross-reference
interchangeable
M5423/09-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILB5423-9TYCSZ4?
MILB5423-9TYCSZ4 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace MILB5423-9TYCSZ4?
There are 26 known substitutes for MILB5423-9TYCSZ4: M5423/09-09, MIL-DTL-5423/9, MILB5423-9 and 23 more. Substitute compatibility should be verified for your specific system.
Is MILB5423-9TYCSZ4 still available?
MILB5423-9TYCSZ4 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